Khao Lak (Similan and Surin Islands)

Written by DiveJourney. Built from public sources and local operator knowledge. Last updated Jan 23, 2026.

• Department of National Parks, Wildlife and Plant Conservation - Mu Ko Similan National Park - Seasonal closure dates, park overview, and coverage/communications notes.
• Department of National Parks, Wildlife and Plant Conservation - Mu Ko Surin National Park - Park overview, currents and tides context, travel-by-boat guidance, and contact details.
• Thailand PRD - Similan Islands and Surin Islands seasonal closure announcement - Government communication on annual closure period and conservation rationale.
• Department of National Parks e-ticket system - Official portal for national park e-ticketing system (process and requirements can vary by park).