Thailand's coastal regions are home to several mesmerizing bioluminescent beaches, where the waters glow due to the presence of bioluminescent plankton.. Here are five top spots to experience this natural phenomenon:

1. Ton Sai Beach, Krabi: Nestled between Ao Nang and Railay Beach, Ton Sai is renowned for its vibrant nightlife and rock climbing. After sunset, the beach offers a captivating display of glowing waters, especially during the new moon phases between November and May.

2. Railay Beach, Krabi: Accessible only by boat, Railay Beach is famed for its limestone cliffs and clear waters. At night, particularly during the high season from November to April, visitors can witness the sea light up with bioluminescent plankton. ​

3. Ao Nang, Krabi: A bustling resort town, Ao Nang serves as a gateway to numerous islands. Its beaches are known to exhibit bioluminescent displays, offering guided night tours for those eager to experience the glowing waters. ​

4. Koh Phi Phi: This iconic island is not only celebrated for its stunning landscapes but also for the bioluminescent plankton that illuminates its shores at night. Swimming amidst these glowing organisms is a magical experience. ​

5. Phang Nga Bay: Located near Phuket, Phang Nga Bay offers sea canoeing tours where visitors can paddle through waters illuminated by bioluminescent plankton, especially after sunset. ​

For the best experience, plan your visit during the new moon when the skies are darkest, enhancing the visibility of the bioluminescence. Always check local conditions and consider guided tours to safely enjoy this natural wonder.​