It’s been an incredible month for divers on Koh Tao, with an unusually high number of whale shark sightings lighting up the local dive community. These gentle giants have been making regular appearances across some of the island’s most iconic dive sites—bringing excitement, awe, and a few happy tears to divers lucky enough to share the water with them. Where Have They Been Spotted? Over the past few weeks, whale sharks have been sighted at several well-known dive spots around the island, including: Chumphon Pinnacle – Known for deeper waters an huge shoals of fish, it remains the most consistent site for whale shark encounters. Southwest Pinnacle – Multiple divers have reported close passes from whale sharks gliding through the clouds of barracuda and snapper. Sail Rock (between Koh Tao and Koh Phangan) – Though a bit further out, this site has been buzzing with sightings. White Rock and Shark Island – Even shallower training sites have had unexpected visits, thrilling Open Water students mid-course! Why Are Whale Sharks Visiting Now? Whale sharks are known to visit the Gulf of Thailand throughout the year, but certain seasons bring more consistent sightings. March through May is considered prime time, when warmer waters and plankton blooms attract these filter-feeding giants. This month’s spike in sightings could be linked to favorable water conditions—such as mild currents, nutrient-rich water, and healthy plankton levels. It’s also well known that the Gulf is a nursery for younger, more curious Whale Sharks. The lack of larger predators makes this the perfect place for them to feed and grow so they’re less vulnerable to predation when they head back out in to the deeper ocean. What It’s Like to Dive with a Whale Shark There are few underwater experiences more breathtaking than coming face to face with the largest fish in the ocean. Despite their size (often 5–10 meters in length), whale sharks are gentle, slow-moving, and totally harmless to humans. They tend to cruise calmly past divers, giving everyone a chance to soak in the moment. Most sightings happen unexpectedly—you’re scanning the reef one second, and the next you’re watching a shadow grow larger and larger until this massive, spotted beauty drifts into view. How to Improve Your Chances of Seeing One Book Fun Dives at Chumphon Pinnacle, Sail Rock or Southwest – These deeper sites are hotspots during the season. Dive Frequently – More dives, more chances! Whale shark encounters are often about timing and a little luck. Stay Informed – Our team at Phoenix Divers is always tracking recent sightings. Let us know you’re eager to see one and we’ll help get you to the right sites. Be Ready – Even if you’re on a training dive, whale sharks don’t discriminate—bring your camera (if you’re qualified!) and keep your eyes open. When you do see one – stay still, don’t chase. If you swim towards a whale shark it will simply turn and swim away, and all you will see is the back of it. If you stay still these curious fish will come to you, giving you a much more enjoyable encounter. Join the Excitement at Phoenix Divers Whether you’re a seasoned diver or taking your first plunge, there’s never been a better time to be underwater in Koh Tao. Our team at Phoenix Divers Koh Tao is running daily dive trips to the best local sites—and yes, we’ve seen our fair share of whale sharks this month too! We offer diving courses for all levels and fun dives for certified divers who want to chase the thrill of swimming alongside one of the ocean’s most majestic creatures. Don’t Miss This Magical Season Whale shark sightings like these don’t happen every day—but when they do, they’re unforgettable. If you’ve been thinking about visiting Koh Tao, now is the perfect time to dive in. Come join us, and who knows—you might just meet a whale shark face to face. See you underwater!