Ko Rok Roi, Satun

Ko Rok Roi stands as the smaller companion to Ko Rok Nok in the Rok Islands archipelago, offering visitors pristine white sand beaches and some of Satun’s clearest waters. This uninhabited island forms part of Tarutao National Marine Park, making it a protected sanctuary where marine life thrives undisturbed. What sets Ko Rok Roi apart is its remarkable coral gardens that begin just meters from shore, creating an underwater wonderland accessible to snorkelers of all skill levels.

Crystal-clear turquoise waters reveal vibrant coral formations teeming with tropical fish, from schools of yellow snappers to graceful angelfish dancing between staghorn corals. The island’s main beach stretches along the eastern shore, where powdery white sand meets gentle waves perfect for swimming. Snorkeling here feels like floating in an aquarium – parrotfish munch on coral, clownfish dart between anemones, and occasional reef sharks glide peacefully in deeper waters. The sound of waves lapping against the shore mingles with bird calls from the forested interior, while the scent of salt air carries hints of tropical vegetation.

Tranquility defines the Ko Rok Roi experience, where the absence of development creates an atmosphere of pure natural serenity. Small groups of day-trippers dot the beach, but the island never feels crowded thanks to visitor limits enforced by park authorities. Time moves differently here – hours slip by unnoticed while exploring underwater gardens or simply lounging on pristine sand. The peaceful environment makes it an ideal escape from Thailand’s busier tourist destinations.

November through April offers the best weather conditions with calm seas and excellent visibility for snorkeling. Speedboat tours from Pak Bara pier typically combine Ko Rok Roi with Ko Rok Nok as a day trip, taking about 45 minutes each way. Bring reef-safe sunscreen, snorkeling gear if you have it, and plenty of water as no facilities exist on the island. Since overnight stays aren’t permitted, plan for a full day of island hopping to make the most of this remarkable marine sanctuary.