The Andaman Sea's reefs, filmed across more than 1000 dives off Thailand's Similan Islands, Phuket, and Phi Phi, and Myanmar's Mergui Archipelago and Burma Banks. The film catalogs 213 species without much narrative scaffolding beyond location and behavior: zebra sharks and whale sharks give way to manta rays and eagle rays, then to the reef's smaller residents, seahorses, moray eels, and a parade of butterflyfish, angelfish, and parrotfish. Camouflage gets its own stretch of footage, ghost pipefish and stonefish holding still against coral until they move. Two wrecks, the Tuna Wreck at the Similans and the King Cruiser off Phuket, appear as artificial reefs thick with fish. Night dives bring out hunting crabs and hermit crabs, and the film lingers on behavior rarely caught on camera: pharaoh cuttlefish mating, a day octopus fighting, broadcast spawning on the reef. Turtles, banded sea kraits, and a rough-toothed dolphin round out the footage. It plays less like a story and more like a field guide shot entirely underwater, species by species, over years of diving.