สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion
Sinsamut Group Tour is a well-regarded island excursion operator based at Sai Kaew Beach, offering day trips and snorkelling dives around Koh Samet, one of the closest island getaways to Bangkok. Operating from the Ban Phe side of the crossing, the company caters to both independent travellers and groups looking to explore Koh Samet's clear waters and coral-fringed coastline without the hassle of arranging transport and activities independently. Visitors can expect a straightforward, organised experience with boat transfers and snorkelling as the core offering. Koh Samet is known for its white sand beaches and relatively calm seas, making it a practical choice for a single-day escape from the mainland. The tour format suits families, small groups, and solo travellers who want a guided introduction to the island rather than navigating it alone. Good to know: the office is open daily from 08:00 to 20:00, so early arrivals can secure their booking and board without delay. Travellers are advised to bring reef-safe sunscreen, a change of dry clothes, and any personal snorkelling gear if preferred, though equipment is typically part of the excursion package. Checking the operator's website at sinsamutgroup.com ahead of time is recommended to confirm current pricing, departure schedules, and group availability, particularly during Thai public holidays and peak weekend periods when demand is higher.
Book tours & tickets in Koh Samet
Day trips, skip-the-line entry, and guided experiences around สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion — book ahead and skip the on-the-ground markup.
We may earn a commission from bookings made through these links — at no extra cost to you. Learn more.
Experience hints
Pair your visit. After สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion, round out your day in Koh Samet with contrasting stops nearby.
Also Popular in Koh Samet

Ko Kloi Floating Market
A lakeside floating market near Rayong with souvenir shops, dining, and fish-feeding activities.

Nuanthip Pier
The main ferry departure point connecting the mainland at Ban Phe to Koh Samet island.

Saikaew Beach Resort
Upscale beachfront resort on Koh Samet with bright rooms, three pools, a spa, and open-air dining.

Ban Phe Fresh Market
A lively coastal market in Ban Phe offering fresh-caught seafood, dried goods, and local produce daily.
สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion: Frequently Asked Questions
Is สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion worth visiting?
สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion holds a 4.7★ rating from 219 Google reviews, placing it among the highest-rated islands in Koh Samet.
What are the opening hours of สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion?
สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion is typically open 08:00-20:00 — see the full day-by-day schedule in the location info on this page. Hours can change on Thai public holidays, so check ahead for holiday visits.
When is the best time to visit สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion?
The best months to visit Koh Samet are November – April (driest island near Bangkok), with the most reliable weather. Crowds peak in Weekends & Thai public holidays — going early in the day usually means fewer people. Months to think twice about: Thai long weekends (crowds, not weather).
Where is สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion located?
สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion is at No.91 Sai Keaw Beach Ban Phe Muang / Samet Island, ตำบลเพ อำเภอเมืองระยอง ระยอง 21160, Thailand, in Koh Samet. Getting around Koh Samet: Green songthaews between the pier and the beaches; Walking — the east-coast beaches connect via a coastal path.
Location Info
No.91 Sai Keaw Beach Ban Phe Muang / Samet Island, ตำบลเพ อำเภอเมืองระยอง ระยอง 21160, Thailand+66 38 644 303www.sinsamutgroup.com/Visitor Information
Best time to visit
November – April (driest island near Bangkok)
Avoid: Thai long weekends (crowds, not weather)
Rainy season
May – October (lighter than elsewhere)
Avg. temperature
25°C – 33°C(77°F – 91°F)
Crowds
Peak: Weekends & Thai public holidays
Getting there
Bus or minivan from Bangkok's Ekkamai terminal to Ban Phe pier in Rayong (~3–3.5 hrs), then a 40-minute ferry or 15-minute speedboat to Na Dan pier. The island is part of a national park — foreigners pay a ฿200 entry fee on arrival.
Getting around
- •Green songthaews between the pier and the beaches
- •Walking — the east-coast beaches connect via a coastal path
- •Motorbike rental (฿300/day; interior roads are partly dirt)
Where to stay near สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion
Find hotels in Koh Samet on the booking sites travellers trust most.
- Compare prices across sites
- Filter for free cancellation
- Secure checkout on the partner site
Compare rates on Booking.com
Largest selection
Compare rates on Agoda
Asia-focused selection
Compare rates on Hotels.com
Member prices
We may earn a commission from bookings made through these links — at no extra cost to you. Learn more.
Tips for Visiting Islands
Book Ferries on 12Go.Asia
The 12Go platform lets you compare ferry operators, times, and prices between islands. Book a day or two ahead in high season. Avoid the cheapest operators if reviews mention safety concerns.
Check Island Closures
Similan Islands, Surin Islands, and Koh Tachai close mid-May to mid-October. Some smaller islands reduce ferry service in monsoon season. Always verify schedules before planning your route.
Snorkel Gear Is Cheap to Buy
Rental gear is often scratched and ill-fitting. Buy a decent mask and snorkel at a Big C for 300–500 THB — cheaper than two days of rentals and much more hygienic.
Nearby Places
Similar Islands Across Thailand

Mu Ko Similan National Park
A remote national park archipelago off Phuket's coast, famed for turquoise waters, white sand, and world-class diving.

Koh Lipe
Koh Lipe, in Thailand's far southern Andaman near the Malaysian border, is the country's closest answer to the Maldives — powder-white sand at Sunrise and Pattaya beaches and water in improbable shades of turquoise, with snorkeling straight off the shore into the protected Ko Tarutao Natio.

Koh Phangan
A laid-back Thai island of white-sand beaches, jungle interior, and the legendary monthly Full Moon Party.
Where to stay near สินสมุทร กรุ๊ป ทัวร์ - ดำน้ำเกาะเสม็ด วันเดย์ทริปเกาะเสม็ด / Sinsamut Group Tour - Koh Samed Island Excursion
Find hotels in Koh Samet on the booking sites travellers trust most.
- Compare prices across sites
- Filter for free cancellation
- Secure checkout on the partner site
Compare rates on Booking.com
Largest selection
Compare rates on Agoda
Asia-focused selection
Compare rates on Hotels.com
Member prices
We may earn a commission from bookings made through these links — at no extra cost to you. Learn more.
Location Info
Visitor Information
Best time to visit
November – April (driest island near Bangkok)
Avoid: Thai long weekends (crowds, not weather)
Rainy season
May – October (lighter than elsewhere)
Avg. temperature
25°C – 33°C(77°F – 91°F)
Crowds
Peak: Weekends & Thai public holidays
Getting there
Bus or minivan from Bangkok's Ekkamai terminal to Ban Phe pier in Rayong (~3–3.5 hrs), then a 40-minute ferry or 15-minute speedboat to Na Dan pier. The island is part of a national park — foreigners pay a ฿200 entry fee on arrival.
Getting around
- •Green songthaews between the pier and the beaches
- •Walking — the east-coast beaches connect via a coastal path
- •Motorbike rental (฿300/day; interior roads are partly dirt)

