A full-day speedboat trip from Phuket that reaches the Similan Islands’ best snorkeling spots — Princess Bay, Christmas Point and the Sailing Rock viewpoint. Expect clear water, ancient coral reefs and a long but rewarding day on the Andaman Sea.
A full-day speedboat trip from Phuket that reaches the Similan Islands’ best snorkeling spots — Princess Bay, Christmas Point and the Sailing Rock viewpoint. Expect clear water, ancient coral reefs and a long but rewarding day on the Andaman Sea.
The speedboat cuts a low white wake as the islands rise from the Andaman like granite sentries, their rounded boulders striking the horizon. Salt air and engine hum set the pace; within an hour the water brightens from turquoise to the clear blue that made the Similan Islands famous.
Verified experiences and guided adventures in the surrounding area.
Operated by My Trip Maker · Khao Lak, Phang Nga
The speedboat cuts a low white wake as the islands rise from the Andaman like granite sentries, their rounded boulders striking the horizon. Salt air and engine hum set the pace; within an hour the water brightens from turquoise to the clear blue that made the Similan Islands famous.
These nine islands are part of Similan Islands Marine National Park, home to some of Thailand’s oldest coral formations — reef structures that developed over millennia and now host dense schools of reef fish and sea fans. The archipelago’s western faces take the brunt of the southwest monsoon (mid-May to October), so most visits come in the calmer season when visibility is excellent and coral gardens drop into focus below the surface.
On a typical speedboat itinerary from Phuket you’ll board early, cross to islands 5 and 6 for initial snorkel sessions, relax on Princess Bay at Island 4, then head to Christmas Point and Namchai Bay around Island 9. A short climb on Island 8 rewards you with the iconic Sailing Rock viewpoint. Guides on these tours combine safety briefings with local natural history — expect pointers about currents, soft corals, and protected zones.
Practicalities: this is a long day (about 10–11 hours including transfers), so hydrate and bring reef-safe sunscreen, a rashguard, and a waterproof pouch. Motion-sickness medication is wise if you’re sensitive to choppy seas. National park fees are required and are typically handled by tour operators. Plan your visit between November and April for the calmest water and best underwater visibility.
moderate.
10–11 hours.
Suitable for people who can climb stairs aboard a boat, swim short distances and stand for brief hikes to viewpoints; basic stamina needed for a full day.
Tour listings often include the national park fee; confirm at booking — this operator’s inclusions list the park fee and it’s typically handled during check-in.
Crossings vary by departure point and sea conditions but plan on roughly 60–90 minutes each way from Thap Lamu/Phuket piers.
Yes — shallow reef areas and guided snorkel stops suit beginners, but you should be comfortable with basic swimming and floating; guides provide instruction and life jackets.
November–April offers the calmest seas and best visibility; the southwest monsoon (mid-May–October) brings rougher water and possible closures.
The islands were declared a marine national park in 1982 to protect their ancient reef systems and unique granite landscapes.
Visitors are encouraged to use reef-safe sun protection, avoid touching coral, and follow park rules—the area is protected and sensitive to overuse.
My Trip Maker operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.




The speedboat cuts a low white wake as the islands rise from the Andaman like granite sentries, their rounded boulders striking the horizon. Salt air and engine hum set the pace; within an hour the water brightens from turquoise to the clear blue that made the Similan Islands famous.
The speedboat cuts a low white wake as the islands rise from the Andaman like granite sentries, their rounded boulders striking the horizon. Salt air and engine hum set the pace; within an hour the water brightens from turquoise to the clear blue that made the Similan Islands famous.
These nine islands are part of Similan Islands Marine National Park, home to some of Thailand’s oldest coral formations — reef structures that developed over millennia and now host dense schools of reef fish and sea fans. The archipelago’s western faces take the brunt of the southwest monsoon (mid-May to October), so most visits come in the calmer season when visibility is excellent and coral gardens drop into focus below the surface.
On a typical speedboat itinerary from Phuket you’ll board early, cross to islands 5 and 6 for initial snorkel sessions, relax on Princess Bay at Island 4, then head to Christmas Point and Namchai Bay around Island 9. A short climb on Island 8 rewards you with the iconic Sailing Rock viewpoint. Guides on these tours combine safety briefings with local natural history — expect pointers about currents, soft corals, and protected zones.
Practicalities: this is a long day (about 10–11 hours including transfers), so hydrate and bring reef-safe sunscreen, a rashguard, and a waterproof pouch. Motion-sickness medication is wise if you’re sensitive to choppy seas. National park fees are required and are typically handled by tour operators. Plan your visit between November and April for the calmest water and best underwater visibility.