Sale! Select options Similan Islands Day Tour Premium Service by speedboat ฿2,300.00 – ฿2,400.00 Similan’s leading snorkeling operator providing affordable luxury island tours with a fun loving team with Eco-friendly service. We take pride in preserving this future world heritage site by supporting green fins guidelines. As pioneer of Similan Reef cruising. Each day we choose the best sites to visit for the conditions, water visibility, and ecological diversity. Child age 4 – 11 years old.