Surin Islands (Torinla & Chong Kaad)

Beyond Richelieu, the Surin archipelago offers gentler fringing reefs suitable for less-experienced divers and mixed groups. Torinla and Chong Kaad feature healthy coral gardens, turtles, and schooling fusiliers, with occasional whale shark transits during bloom periods. Visibility ranges 15–30 meters, currents are usually modest, and depths stay within standard sport limits, making these sites ideal for tuning buoyancy before tackling pinnacles. While not as high-odds as Richelieu, they provide beautiful, low-stress dives with real pelagic potential in spring. Liveaboards often include a warm-up dive here, and day trips operate from Kuraburi or Khao Lak when seas are calm.