November to April

Liveaboard diving safari via Dive the World / M/V Dolphin Queen

Suitable for Open Water / Advanced divers

Richelieu Rock – the crown jewel of the Similans, famous for whale shark encounters and dense soft coral walls.

Koh Tachai – strong currents bring in schooling fish, manta rays, and occasional whale sharks.

Koh Bon – a reliable manta ray cleaning station along a sloping reef ridge.

Elephant Head Rock – dramatic granite boulder swim-throughs and overhangs with rich macro life.