The Similan Islands National Park Fee

The Department of National Parks (DNP) charges foreign visitors 500 Thai baht an adult and 250 baht a child to enter Mu Ko Similan National Park, and Thai visitors 100 and 50 (checked November 2026). Some day trips put the fee in their price and some leave it for you to pay, so two prices that look close can be 500 baht apart. Siam Adventure World’s Similan Islands Early-Bird Tour From Phuket and Khao Lak! includes the national park fees, from US$121 a person (checked November 2026).

The calendar above is the early-bird day, with 4,453 reviews (checked November 2026). Its park fee is non-refundable.

The short answer

Budget 500 baht a head for every adult in your group unless the trip includes the fee. If you would rather settle everything at booking and carry no cash for the pier, book a trip with the fee in the price; the early-bird day is one. If you pick a cheaper trip that leaves the fee out, add the fee before you compare, and pay it at the park authority’s rate, not at a figure printed on an older listing.

The fee and the e-ticket

DNP’s entrance fee for Mu Ko Similan National Park is 500 baht for a foreign adult and 250 baht for a foreign child, the rate in force since 7 June 2022. Since 15 October 2025 every visitor needs an e-ticket, and foreign visitors are registered with their passport number. On a trip with the fee included, the operator buys the ticket for you, which is why some trips need your full name, passport number and date of birth at booking. Where a trip leaves the fee out and prints how it is paid, you pay it on the day: at the pier, or in cash on site.

Included or not: every carded trip

Prices per person from the GetYourGuide listings (checked November 2026); the park fee from DNP, checked November 2026. Operators price by date and season, so treat the prices as the shape of the market, not a quote.

The figures some trip pages show

Two figures on the trip pages do not match the park authority’s. Both Oh-Hoo trips show 400 baht an adult and 200 a child as the fee you pay on top; DNP’s fee for foreign visitors is 500 and 250, so budget 500 for each adult. One Asia’s Krabi trip and one other listing show 300 baht for a child; DNP’s foreign child fee is 250. Where a trip page leaves the fee unstated, as on the Sawanu Travel, small-group catamaran and Big Cat Travel days, ask before you book, and assume 500 baht a head until you hear otherwise.

Check dates for the fee-included early-bird day

Pick by how you want to pay

Prices, ratings and review counts from the GetYourGuide listings (checked November 2026). Operators price by date and season, so treat the figures as the shape of the market, not a quote.