Similan Islands - to dive for

Just got back from a 4 day 4 night liveonboard scuba diving trip to the Similan
Islands off the coast of Thailand in the north Thailand Sea. The area is renowned for being one of the top diving areas in the world, and it certainly lived up to its reputation, and matched my previous experience in Australia. We saw arrays of beautiful coral, every tropical fish imaginable, octopus, and some really amazing tiny things - sea horses, nudibranches - kind of colorful underwater worms - truly another world underwater, and really eye opening. Don't think I'll leave it another 8 years again before I revisit that scuba world.