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Major study shows resilience of Maldives reefs
US-based research group Coral Reef CPR, which has been studying a multitude of locations throughout the Maldives, has reported that some regions have demonstrated a remarkable resilience to elevated water temperatures, whereas others have been subjected to stress from other causes.
Bleaching in the Maldives was first reported in 2015, but most areas rebounded quickly. As the unusual weather patterns associated with an El Niño event persisted throughout 2015 and worsened in 2016, reefs bleached again. Coral Reef CPR measured the temperatures at a depth of 10 metres in lagoon, channel and outer reefs on Baa atoll and South Male Atoll, and found them to be abnormally high and steadily increasing between March and April that year.
Radshoo Atoll showing a high coral cover in August 2016.
Temperatures on exposed outer reefs ranged from 32-33° C, while lagoon reefs climbed to 35° C and higher, which was 2-5° C above the normal annual maximum. Using a highly accurate Castaway CTD (hand-held, deployable temperature metre), the team also measured temperature profiles from the surface to 40 metres of depth which showed a complete breakdown of cooler deep currents and absence of a thermocline. They reported that at the same time, “the surface of the sea was like glass and the water was gin clear,” allowing for a greater penetration of harmful UV radiation. “Together,” wrote Dr Andrew Bruckner of Coral CPR, “these conditions were a recipe for disaster.”
According to their research, Coral Reef CPR found that bleaching of the most sensitive corals started in March 2016, and by mid-April entire shallow reef systems throughout the country were stark white. Some corals resisted bleaching initially, especially the massive boulder corals such as Porites, but the water continued to warm. By the time the summer monsoon finally kicked in during mid-May, nearly every coral was either fully bleached or a vivid fluorescent colouration (yellow, purple, red or blue) as the coral animal produced photo-protective pigments to shield its tissue from too much sunlight.
Bleached coral can recover if environmental conditions return to normal relatively quickly, but the prolonged duration of the 2016 bleaching event overwhelmed many of the more sensitive species. Shallow lagoon reefs, reef flat and reef crest communities above five metres of depth sustained catastrophic losses, with up to 80 to 95 percent loss of coral in the hardest hit areas, particularly the dominant branching and table acroporids.
To gain more insight on the country-wide extent of bleaching impacts, Coral Reef CPR surveyed more than 80 reefs on eight different atolls in central and northern Maldives. While most emergent reefs in both fore reef and lagoon areas had become “a graveyard of coral skeletons” by August 2016, not all reefs were equally affected and even the hardest hit areas had survivors.
Acropora species at a ‘coral refuge’ in South Male, August 2017.
Pocillopora, another common form of branching coral, showed a higher survival rate in the shallow reef flats losing between 50 to 75 per cent of its cover – a large percentage, but significantly lower than other species. Other reefs throughout the country, especially those in outer exposed areas and submerged deep reefs which were dominated by massive boulder corals as opposed to the more fragile acroporids, lost between 10 to 20 percent of their corals, a much higher rate of survival.
Although initial observations suggested that the situation was ‘ominous’, Coral Reef CPR found that a more detailed examination of the reefs yielded a number of positive surprises. Of particular significance were individual colonies of certain species that failed to bleach, despite being located adjacent to other colonies that had fully bleached. Some of the corals produced vivid fluorescent pigments, which appeared to offer protection to these colonies.
The team found that some reefs provided a refuge from the bleaching, with high numbers of surviving corals on channel reefs and submerged reefs, known locally as thillas, where there is much more water movement. Coral mortality was also found to be reduced on outer reefs that are exposed to high wave action. These areas still lost most of their branching and table corals, but they are dominated by boulder corals, especially massive Porites corals which are much slower-growing and tend to be long-lived, with some colonies estimated to be between 500 and 1000 years in age. Although many of these larger corals appeared to lose some tissue, very few of them actually died, and the team began to see signs of tissue recovery, observing that all the reefs considered to be bleaching “refuges” had high numbers of boulder corals as well as the more fragile branching and plating acroporids.
Many of the Maldives’ atolls, especially on their western side, have small islands that contain their own lagoon, forming a structure that resembles a micro-atoll. These lagoons tend to be fairly shallow at only 5-15 metre deep, and the sandy bottom is covered with hundreds of small coral bommies and patch reefs. These areas often support unique, unusually large boulder, plating or foliaceous (leaf-like) corals that form the framework of the reef and are colonised by a high diversity of corals, especially acroporids. Within these areas, Coral Reef CPR identified more than 30 species of Acropora that survived the 2016 bleaching event. These environments tend to have lower visibility, which may explain why they provided a refuge from bleaching.
Baa atoll house reef with good coral cover despite being less than one metre deep.
In all reef environments, the team found much higher survivorship of corals on reef slopes. In many cases, the steep part of the slope was littered with hundreds of broken Acropora branches, fragments that had been detached from larger colonies on the top of the reef and carried down the slope. The base of these reefs contained larger, intact, branching, digitate (finger-like) and table acroporids in good condition.
Remarkably, the studied sites had unusually high numbers of coral recruits and one to two-year-old juvenile corals that had resisted bleaching. These included most of the acroporids and other species that sustained very high mortality during the 2016 bleaching event. Dr Bruckner notes that the presence of these corals provides evidence that coral reefs in the Maldives are still very resilient and are likely to recover quite quickly.
“Reading some of the recent negative reports from the Maldives highlights some of the gaps in understanding, variations between reef survey techniques and importance of evaluating a large number of reefs and not drawing conclusions from a small sample size,” reports Dr Buckner.
“This is particularly important as the geological foundation of the islands and reef systems of the Maldives does not permit small sample sets of data to be extrapolated for the whole country.”
Photographed in August 2017, this several centuries old Porites shows 100 percent live coral.
The Maldives contains a large number of reefs which are distant from populated areas. However, there is a great deal of concern regarding environmental degradation associated with a recent “building boom” around the islands. The team also found that other reefs, especially those around North Male Atoll and Ari Atoll have been badly damaged by a severe outbreak of Crown of Thorns Starfish (COTS), cushion starfish (Culcita sp.) and coral-eating snails (Drupella sp.). This outbreak of “corallivores” began prior to the bleaching event in 2016 and has continued after the bleaching ended, causing the loss of coral to be misinterpreted, according to Coral Reef CPR.
“During 2017,” writes Dr Bruckner, “a number of other marine biologists told us about reefs that are undergoing bleaching again. However, when we examined these locations, the damage caused by the corallivores was misinterpreted as bleaching and, further, our temperature meters and NOAA satellite data have recorded temperatures that are within the normal range.”
Noting that some observations may have been carried out with non-scientific equipment, he adds that “we strongly discourage the use of recreational diving computers as a measure of accurate water temperature.”
In conclusion, Dr Bruckner writes that “there have been large scale changes to the reef systems throughout the country as a result of the 2016 coral bleaching event, and these have been compounded locally by other human and natural stressors. However, these reefs show multiple signs that indicate they are resilient to these stressors, and in absence of high numbers of corallivores and unsustainable coastal development and other human impacts, they are undergoing rapid recovery.”
Photos: Coral Reef CPR
The Standard, Maldives invites travellers to discover the magic of manta ray season, an extraordinary, time-limited spectacle set against one of the Maldives’ most sought-after marine destinations. With seamless access to the world-renowned Hanifaru Bay, guests can experience one of the ocean’s most mesmerising encounters, all from the comfort of a vibrant island escape.
Ideally located just a short distance from Baa Atoll, recognised as a UNESCO Biosphere Reserve, The Standard, Maldives effortlessly blends natural beauty with a playful, lifestyle-driven sense of escape. Surrounded by a thriving house reef, powder-soft white sands, and crystal-clear lagoons, the resort offers a vibrant gateway to the season’s most captivating experience: swimming alongside majestic manta rays.
Manta ray season transforms the waters near Hanifaru Bay into a global marine hotspot. Drawn by plankton-rich currents, these graceful giants gather in remarkable numbers, creating a rare opportunity for guests to witness, and more importantly swim with, one of the ocean’s most awe-inspiring species. Easily accessible from the resort, curated excursions ensure guests can experience this phenomenon in a safe, guided, and unforgettable way.
“Our location offers guests a rare gateway to one of the Maldives’ most iconic natural wonders,” said Carlos Pradas, Operations Director at Drift Dive Centre and Water Sports of The Standard, Maldives. “Manta season is truly special, it’s not just about seeing them, it’s about being in the water, sharing the moment. It’s an experience that stays with you long after you leave.”
Whether traveling as families, couples, or groups of friends, The Standard, Maldives offers something for every kind of traveller. Families can bond over snorkelling safaris, dolphin cruises, and beachside adventures, while couples can retreat to villas with private pools, indulge in intimate dining experiences, and soak in uninterrupted ocean views. To elevate the stay further, guests can enjoy a Premium All-Inclusive offering, designed for effortless island living, from diverse dining concepts and curated experiences to seamless access to excursions, allowing travellers to focus on what matters most: the experience.
Highlights include guided excursions to Hanifaru Bay during manta season, offering rare opportunities to swim alongside manta rays in their natural habitat. Guests can also enjoy direct access to a vibrant house reef from overwater villas and calm, swimmable lagoons from beach villas, alongside a dynamic mix of wellness, music, and immersive lifestyle experiences. Spacious villas are thoughtfully designed to deliver both comfort and privacy, creating a seamless island escape. Blending contemporary island culture with extraordinary natural encounters, The Standard, Maldives invites guests to embrace a season like no other. Limited season, limitless wonder. Book now to experience manta ray season before it ends.
Kuda Villingili Resort Maldives invites travellers to embrace the rhythm of island life with the launch of its new Surf & Relax Offer — a thoughtfully curated experience blending world-class surf, elevated dining, restorative wellness, and unforgettable adventures in the heart of the Maldives.
Located just 30 minutes by speedboat from Velana International Airport in the North Malé Atoll, Kuda Villingili is home to the Maldives’ longest left-hand barrel wave, Chicken’s Break, making it one of the region’s most sought-after surf destinations. Framed by the resort’s philosophy of Time & Space Redefined, the new offer presents a seamless balance between thrill and tranquillity, designed for both experienced surfers and those discovering the sport for the very first time.
Applicable for direct bookings made through the Kuda Villingili Resort Maldives website, the Surf & Relax Offer is available for stays in Beach Villas with Private Pool and Water Villas with Private Pool (Sunrise and Sunset) for a minimum of four nights, with bookings open until 31 October 2026 using offer code KVSURF. The offer combines immersive surf experiences with moments of indulgence and relaxation. Guests staying in Beach Villas with Private Pool or Water Villas with Private Pool (Sunrise and Sunset) will enjoy USD 100 resort credit per villa, while guests staying seven nights or longer will receive a total of USD 300 resort credit during their stay. Resort credit can be redeemed towards dining experiences, spa treatments, and excursions.
The offer includes complimentary return shared speedboat transfers, daily breakfast at The Restaurant, and daily three-course dinner experiences across five of the resort’s signature dining venues — SPICE, EAST, EARTH, FIRE, and OCEAN. Guests will also enjoy a one-time three-course dinner at the award-winning Mar-Umi, celebrated for its Japanese-Peruvian cuisine and theatrical dining experience. Additional dining at Mar-Umi is complemented with a 15% discount under the Half Board meal plan.
Beyond the waves, the experience extends into wellness and island discovery. Guests can unwind with a 60-minute Deep Tissue Massage per adult at the resort’s private island spa, explore the vibrant marine life surrounding the island through the KV Faru Snorkelling Excursion, enjoy a traditional Sunset Fishing Excursion, and take part in a Cocktail Class at Raalhu Bar overlooking the surf.
For surf enthusiasts, the offer includes 15% savings on surfboard rentals and surf trips to nearby breaks including Cokes, Lohis, Sultans, Jails, and Ninjas. Beginner surfers can enjoy 25% savings on surf beach lessons and water lessons, while guests looking to capture their surf journey can also enjoy 15% savings on surf photography packages. Complimentary early check-in and late check-out, subject to availability, further enhance the ease of the island escape.
Whether chasing perfect swells at sunrise, slowing down through restorative wellness rituals, or simply embracing the laid-back rhythm of island life, Kuda Villingili’s Surf Offer presents a fresh perspective on the Maldives — one where adventure, connection, and serenity exist effortlessly side by side.
Discover Kuda Villingili’s latest special offers here, including the Surf Offer, here.
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The Westin Maldives Miriandhoo Resort combines marine adventure with wellness-focused island stays
The Westin Maldives Miriandhoo Resort, a five-star holistic wellness sanctuary nestled in the pristine Baa Atoll UNESCO Biosphere Reserve, invites travellers to experience one of the Maldives’ most spectacular seasonal phenomena. From May through October, guests can witness the extraordinary feeding gatherings of manta rays that turn the waters of Hanifaru Bay into a world-renowned stage for marine life.
Just 45 minutes from the resort, Hanifaru Bay is among the planet’s most remarkable manta aggregation sites, famed for its “cyclone feeding” behaviour as mantas glide, spiral, and swoop through nutrient-rich waters in an awe-inspiring underwater ballet. With more than a thousand manta rays recorded in the bay, and the Maldives home to the world’s largest studied manta ray population, this protected sanctuary offers an unforgettable bucket-list opportunity to snorkel alongside these gentle giants.
“During peak season, it’s possible to witness dozens, sometimes over 100 manta rays, feeding in the bay, with occasional whale shark sightings, especially around the full moon,” shared José Daniel González, The Westin Maldives Miriandhoo Resort’s resident marine biologist.
Beyond Hanifaru Bay, the Baa Atoll Biosphere Reserve is celebrated for thriving reefs and abundant marine biodiversity. Divers and snorkelers can explore coral gardens filled with colourful reef fish, including batfish, fusiliers, and eagle rays, while dolphins are frequently spotted from the island. The resort also offers traditional line fishing and a wide range of watersports, from jet ski adventures to guided snorkelling experiences with turtles.
For guests who would like to learn more about the underwater world, The Westin Maldives Miriandhoo Resort hosts engaging marine education, including weekly marine biology presentations. Led by the resort’s resident marine biologist, these sessions highlight local ecosystems, marine conservation, and responsible tourism, helping guests connect more deeply with the island’s natural beauty.
After a day of exploration, guests can unwind with Westin’s signature wellness programs, from rejuvenating rituals at the overwater Heavenly Spa to energising movement at the WestinWORKOUT® Fitness Studio. Guests can also enhance post-adventure restoration with the WestinWORKOUT® Gear Lending Program, which includes the Recover and Recharge Kit by Hyperice, designed to ease muscle fatigue and help the body reset. Evenings promise restful comfort in one of the resort’s 69 spacious villas, complete with the award-winning Heavenly® Bed and curated Sleep Well amenities.
Those looking to visit the Maldives for this extraordinary season, or throughout the year, can benefit from the Escape to More package, which includes a complimentary upgrade to an All-Inclusive meal plan featuring three meals daily, unlimited beverages, and a restocked minibar, plus kids under 12 dine free.
For more information, please visit westin-maldives.com.
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