Regardless of your Thailand time frame, a visit to Similan Islands National Park should be at the top of your itinerary. See the best of the islands, even with limited time, on a speedboat and snorkeling tour that reveals the optimum places to spot marine life and endangered species. You’ll enjoy a mix of guided activities and free time, and avoid getting lost with included hotel pickup and drop-off.
See the best of the Similan Islands even with limited time
Snorkel in handpicked spots to observe marine life
Relax on the beach and take part in guided snorkels
The Islands are interesting...
The drive up from Phuket is too long as is the return..
The Speedboat ride is longer than posted at 1.5 hrs each way. .....not 1hr 10 min
So out of 12 hrs trip time we had two snorkeling sessions of 1\2 he each.
Sorry, to say not the best choice of activity