Thailand’s Andaman marine season is reopening after the monsoon pause. Mu Ko Similan National Park reopened on 15 October 2026 following a five-month seasonal closure, while Maya Bay at Ko Phi Phi Le reopened on 1 October. The new season brings better access, but it does not remove weather risk or conservation limits.
Six Andaman marine parks have used an e-ticket system since October 2025, including the Similan, Surin, Phi Phi, Phang Nga Bay and Ko Lanta areas. Travellers should complete the correct visitor details, keep identity documents ready and treat a ticket as one part of the trip rather than a guarantee that boats will operate.
Quick Guide
| Key reopenings | Maya Bay on 1 October 2026 and Mu Ko Similan on 15 October 2026. |
|---|---|
| E-ticket use | Available for participating Andaman marine parks. |
| Identity | Thai visitors use an ID number; foreign visitors use passport details. |
| Purchase timing | Buy in advance or on the travel day before 8am, subject to current system rules. |
| Weather | Boat operators and park authorities may change or cancel access for safety. |
Choose the Right Park
Similan is known for granite formations, clear water and diving, but the journey usually begins with an early transfer to a pier in Phang Nga. Surin combines reefs, island scenery and the cultural context of the Moken community. These are not interchangeable day trips, so choose by travel time, sea comfort and the activity that matters most.
Phi Phi and Maya Bay are easier to combine with a Phuket or Krabi itinerary, though popularity can mean tighter visitor management. Phang Nga Bay suits limestone scenery and sheltered-water routes, while Ko Lanta connects more naturally to a longer southern-island stay.
Complete the E-Ticket Carefully
Enter the visitor’s identity details exactly as they appear on the Thai ID card or passport. A spelling or number mismatch can create delays at the pier. Save the confirmation offline and bring the same document used for the booking.
If a tour company says it will handle park admission, ask whether the e-ticket is included in the quoted price and request proof. Do not assume a boat ticket, guide fee and national-park admission are the same product. Clear paperwork protects the visitor and the operator.
Respect Seasonal Decisions
A scheduled reopening indicates that the regular closure has ended, not that every date will be safe. Wind, swell, rain and local advisories can still stop a departure. Build a flexible day into an island itinerary and avoid a non-refundable long-haul connection immediately after a weather-sensitive boat trip.
Check the forecast and operator message close to departure. If the park closes for safety, use the backup day or choose a mainland activity. Pressure on a boat crew to sail in poor conditions is never a reasonable response to a fixed hotel booking.
Follow Conservation Rules
At Maya Bay and other protected sites, visitor rules may limit where people can walk, swim or anchor. Follow marked routes, staff directions and wildlife guidance. A photograph is not worth crossing a closed area or standing on coral.
Use reef-safe behaviour: do not touch marine life, take shells or feed fish. Secure loose items before boarding, bring a refillable bottle where permitted and remove every piece of waste. The best marine-park visit leaves no trace beyond the admission revenue that supports protection.
Plan the Pier Logistics
An island day often starts earlier than the advertised boat time. Confirm hotel pickup, pier name, check-in deadline, breakfast plan, seasickness preparation and return estimate. Phuket, Khao Lak, Krabi and Ko Lanta use different departure networks, and a vague ‘Andaman pier’ description is not enough.
Pack identity documents, sun protection, a dry bag, essential medication and a light layer for the speedboat. Keep valuables minimal. If diving, verify certification, insurance, equipment and surface-interval planning with the operator rather than relying on a generic excursion description.
Make It Work
Use park access as the fixed core and keep the surrounding itinerary flexible. The e-ticket, boat seat and weather decision should all align before departure.
For foreign visitors, the passport used in the ticketing system should travel to the pier. For Thai visitors, bring the matching ID. Everyone should retain the confirmation until the trip is complete.
Continue Exploring
Continue with Thailand island guides, compare Phuket travel planning, and keep Krabi and Phi Phi coverage nearby for the rest of the trip.
FAQ
When did Mu Ko Similan reopen?
The park reopened for the season on 15 October 2026.
Do foreign visitors need a passport for the e-ticket?
The DNP guidance uses passport details for foreign visitors, so bring the matching passport.
Does an e-ticket guarantee a boat departure?
No. Weather, safety and park decisions can still change or cancel access.
Practical Information
Check the current park notice, e-ticket confirmation, pier and sea forecast before leaving the hotel. Keep a flexible backup day during the Andaman season.