A few seasonal highlights, filmed on board Big Blue Diving Khao Lak’s MV Hallelujah Similan and Surin Islands liveaboard and diving daytrips
Similan and Surin Islands National Parks – Andaman Sea – Thailand – 2018-2019
A few seasonal highlights, filmed on board Big Blue Diving Khao Lak’s MV Hallelujah Similan and Surin Islands liveaboard and diving daytrips
Similan and Surin Islands National Parks – Andaman Sea – Thailand – 2018-2019

As 2025 comes to a close, we reflect on an extraordinary year of collaboration between Big Blue and Andaman Turtle Watch. From leading the region in citizen science submissions to launching the Andaman Sea’s first public sea turtle photo-ID database, this partnership shows what’s possible when conservation is embedded into everyday diving. The data, the discoveries, and the turtles tell a powerful story – and this is only the beginning.

Adventure meets conservation! Big Blue Diving Khao Lak played a leading role in Andaman Turtle Watch’s début season, driving sea turtle research, creating turtle-trips, and launching the first public ID database.

Coral spawning around the Similan Islands is one of nature’s most incredible spectacles. Each year, during the full moons of March and April, corals release eggs and sperm into the sea, ensuring the reefs’ regeneration and supporting the region’s rich marine biodiversity. This synchronized event is vital for the future health of the Similan reef ecosystem.
For divers who live and breathe the ocean lifestyle – spending days at sea, diving pristine reefs, and naturally wanting to protect the incredible marine world we’re passionate about.
We’ve partnered with Andaman Turtle Watch to offer an unique 4-night conservation-focused diving experience in the Similan Islands. These educational expeditions combines our renowned diving standards with hands-on turtle research opportunities.
Perfect for divers seeking an educational adventure that makes a difference.
Thailand’s crystal-clear waters harbour an extraordinary diversity of marine life, from the vibrant coral gardens of the Andaman Sea to the pristine reefs surrounding the Similan Islands.
Join our community of ocean-obsessed divers. Get first news of turtle conservation expeditions, marine research opportunities, and exclusive Living Blue adventures straight to your inbox.