Similan by Once

Dive into crystal‑clear waters, untouched beaches, and the vibrant marine world.

฿3,000 adult/child

Book now, secure your spot and step into a day of pure island magic

Into the blue. With Once, your journey to Koh Similan becomes more than a tour. It’s a passage into wonder. With attentive guides, the journey is smooth, scenic, and soul-stirring.

Koh Similan

Where the sea sings in shades of sapphire and the sand glows like powdered moonlight. Koh Similan with Once is a journey that lingers, in your skin, your spirit, your stories. Come solo, come with kindred spirits, come with curiosity. Just come ready to be transformed. With eco-conscious exploration. Koh Similan is a protected marine park, and Once honors its fragile beauty with low-impact travel and respectful practices.

5x snorkeling

2x boat snorkeling on Koh 7 and Koh 8 or Koh 4. And 3x beach snorkeling on Haad Kueak or Donald Duck Bay, Haad Nah and Haad Lek.

Pickup

Pickup from Phuket and Phang Nga to paradise.

7:00 Haad Patong

The voyage begins. Step aboard Once’s premium speedboat and leave the mainland behind. As Phuket fades into the horizon, the Andaman Sea opens like a storybook. Each wave a page, each breeze a whisper.

Thap Lamu Pier

8:00

Arrive at the private pier for check‑in and insurance registration. Receive a beach bag with a towel, beach mat, and fins.

Once everything is set, have breakfast and take a seasick pill to keep the journey comfortable from the very start.

Departure

9:30

The journey to Koh Similan takes approximately 1 hour and 10 minutes aboard a luxury, four‑engine catamaran with 66 seats.

Koh 8

Ao Kuerk

11:10

Or Horseshoe Bay. A tranquil bay known for its crystal‑clear water and soft white sand, offering a peaceful spot to relax, swim, and enjoy the natural beauty of the Similan Islands.

Viewpoint

Hiking to the viewpoint on Koh Similan, where a short trail leads you to one of the island’s most iconic panoramas. From the top, sweeping views of turquoise water, granite boulders, and pristine white‑sand beaches create a breathtaking scene that captures the essence of the Similan Islands.

Beach snorkeling

Beach snorkeling on Koh 8, where crystal‑clear waters meet soft white sand. This spot offers easy access to vibrant coral reefs and colorful marine life right from the shore, making it perfect for both beginners and seasoned snorkelers.

Koh 4

Boat snorkeling

12:00

Boat snorkeling at Koh 4 in Ao Lek, a calm and scenic bay known for its clear water and vibrant marine life. This spot offers an easy, relaxing snorkeling experience with colorful corals and plenty of fish beneath the surface.