Similan Islands Reopened on 15 October 2026: What to Know for the New Season
Yes—the Similan Islands reopened to visitors on 15 October 2026. Thailand’s Department of National Parks has reported the opening-day welcome, so travellers can once again plan a seasonal island excursion from Phuket or Khao Lak. Daily access and departures remain subject to park instructions and sea conditions. [1]
For anyone who has been waiting for white sand, clear blue water and those unmistakable granite boulders, this is a welcome date on the travel calendar. The new season gives you a chance to build a Similan day into your holiday—and to choose how you want to experience the journey.
What does the 15 October reopening mean for your holiday?
The seasonal reopening follows a period of closure during the monsoon. Ahead of this year’s opening, park authorities organized marine and shore clean-up work alongside preparations for visitor services and safety. [2]
The announced visiting season is planned to continue until 15 May 2027, subject to later official instructions. Treat that as the seasonal planning window; confirm your actual travel date before paying for a trip. [3]
If you are visiting Phuket soon, our suggestion is to leave a little flexibility around your sea excursion. Avoid making it the one activity squeezed between a late arrival and an onward flight. A spare day can give you more room to respond to a revised departure or a weather cancellation.
Where are the Similan Islands, and where does your day begin?
The Similans are in Phang Nga province, in the Andaman Sea. Booking a trip from your Phuket hotel does not mean the boat necessarily departs from Phuket. Thap Lamu, also written Tab Lamu, is a mainland departure point used for Similan excursions. [4]
Check your hotel pickup, departure pier and return arrangements together. A boat’s pier-arrival time is only one part of the journey; the road transfer back to your hotel follows afterward.
For orientation, open Mu Ko Similan National Park on Google Maps and Thap Lamu Pier on Google Maps. These are location references. Use the exact reception point sent with your booking for check-in.
Does reopening mean every October departure will have calm seas?
No. A season-opening date is not a daily sea forecast. A bright view from your hotel cannot tell you the conditions along the offshore crossing.
Before you book, ask how the operator handles unsafe conditions, a change of route and an official cancellation. Keep the written terms with your confirmation. Distinguish an operator-cancelled departure from a cancellation you choose yourself; the applicable terms may differ.
For an early-season visit, leave evening plans flexible and keep in touch with the booking team. If the captain or park authorities change the plan, the day’s safety arrangements take priority over a photograph on the itinerary.
Which experiences should you look for this season?
Island No.8 and Sailing Rock
Island No.8 is the classic granite-and-blue-water setting featured in many current programs. Depending on access and your comfort with the walk, you can head towards the Sailing Rock viewpoint or use the stop for beach time. Current product schedules describe different lengths of time ashore, so compare the actual program. [6]–[8]
For wider destination background, our existing Similan Island planning guide introduces the island experience.
Snorkeling, with realistic expectations
The underwater scenery is a major part of Similan’s appeal. Thailand’s tourism authority highlights snorkeling areas around the islands, although the location used on your trip depends on the permitted route and conditions. [5]
Ask how much time is allocated to each water stop and tell the team about your swimming ability before booking. A life jacket does not replace listening to the crew or deciding whether you feel comfortable entering the water. Our beginner snorkeling guide explains what to expect before your first session.
Turtle photographs can be exciting inspiration, but wildlife moves freely. Treat any encounter as a bonus, keep your distance and give the animal space to continue on its way. Never chase a turtle for a photograph. [6][7]
Which boat should you compare for a Similan trip?
Start with the kind of day you want: an active speedboat excursion, a speed catamaran with different seating areas, or a yacht-style outing where relaxing aboard is part of the appeal. Compare the actual vessel and schedule alongside the price.
Fantastic Similan: a conventional speedboat option
The Fantastic Similan speedboat day trip lists beach visits to Islands No.8 and No.4, with two snorkeling stops. It is a useful option to compare when the destination and water activities are your main priorities. Check transfer coverage and current date-specific inclusions. [6]
Once Catamaran: a speed-catamaran day with island stops
The Once Catamaran Similan program combines the beach landings with two snorkeling stops. The boat has a seated cabin, bow area and open upper deck. Its published program also includes meals through the day. Choose this exact Similan itinerary when comparing; Once’s other island route is a separate product. [7]
Flash No.7: yacht spaces and holiday photography
The Flash No.7 Similan yacht trip offers indoor lounge areas, sheltered upper-deck sofa seating and a program combining Island No.8 with two snorkeling stops. It is worth comparing if the setting aboard and holiday photography matter to your group. [8]
No boat type removes the effect of waves. Ask about the particular vessel’s facilities and your group’s needs rather than treating the word “catamaran” or “luxury” as a guarantee of comfort.
What should you confirm before booking the new season?
| Confirm this | Why it matters |
|---|---|
| Hotel pickup and total day length | The drive to and from the pier affects the day as much as the sea crossing. |
| Exact boat and passenger arrangements | Seating, shade and space vary between vessels. |
| Beach landings versus snorkeling stops | A numbered island on the route does not necessarily mean going ashore. |
| Park entry and other inclusions | Compare the total payable amount, equipment and any optional charges. |
| Guide language and dietary needs | Ask before payment so the team can check availability. |
| Eligibility and insurance conditions | Age, health and mobility restrictions differ between programs. |
| Weather and cancellation terms | Keep the terms for your specific booking. |
Our guide to choosing a Phuket tour agency offers more checks to use before paying.
Sea Me Again’s suggestion: leave space to enjoy the day
Choose a day when you can give the outing your attention. Have breakfast as arranged, keep the briefing time free for listening, and leave some beach time for simply enjoying where you are. Packing every moment with a photo target can make even a beautiful island stop feel rushed.
Prepare the passport details requested for registration, swimwear, sun protection, a change of clothes and a waterproof pouch. Confirm whether your particular trip provides a towel and any other equipment you need. Follow the park’s current sunscreen requirements rather than relying only on a “reef-friendly” label. The reopening announcement specifically highlights coral-conscious sun protection. [1]
If you would like help choosing, send Sea Me Again your travel date, hotel, group ages and preferred style of day. We can help you compare the available programs. Use the linked tour pages for the latest itinerary and travel-date price.
Frequently asked questions
Are the Similan Islands open now?
The park reopened on 15 October 2026. As of this article’s 21 October update, the new season has begun; check daily access and departure status for your date. [1]
When is this season expected to end?
The announced season is planned through 15 May 2027, subject to later park instructions. [3]
Can I join a trip while staying in Phuket?
Yes. Compare tours with hotel pickup and check the road transfer to the named departure pier. Do not assume the boat leaves from a Phuket pier. [6][7]
Do all Similan tours visit the same islands?
No. Compare the listed beach landings and water stops. For example, Once and Fantastic list landings on Islands No.8 and No.4, while Flash No.7’s published program focuses its landing on No.8. [6]–[8]
Is snorkeling the same as scuba diving?
No. A snorkeling itinerary does not automatically include scuba diving. Ask for the activity details before booking.
Should I book purely by the lowest advertised price?
Compare what your group will actually receive: transfers, park entry, boat facilities, activities and the full schedule. Then decide which option fits your budget and the day you want.
Sources and further information
- DNP: Similan opening-day report
- DNP: Save Similan preparations
- IN News: 2026–27 season dates
- Tourism Authority of Thailand: Mu Ko Similan National Park
- Tourism Authority of Thailand: snorkeling and diving destinations
- Fantastic Similan itinerary
- Once Catamaran Similan itinerary
- Flash No.7 Similan itinerary
