Snorkeling Tours & Sightseeing around Koh Samui

Welcome at Grand Sea Discovery

Our main business is operating snorkeling tours and trips around Koh Samui, with destinations such as Koh Tao & Koh Nang Yuan, we do offer the best tour in samui and the beautiful treasure Angthong National Marine Park.

The beautiful island of Koh Samui lies in the waters of the Gulf of Thailand and attracts visitors all year round. There are plenty of beaches, restaurants, bars and shops to explore as well as some more authentic Thai experiences with trips to the waterfalls and elephant trekking.

Grand Sea Tours

Snorkeling Tours & Sightseeing

Our popular tours & trips are:

Koh Tao & Koh Nang Yuan, known for the beautiful, colorful coral reefs and crystal clear water. Perfect to enjoy a day of snorkeling while staying on Koh Samui.

Angthong National Marine Park , the treasure of 42 islands with corals reefs, emerald lake and beautiful beaches. This activity gives You the possibility to snorkel, kayak, relax on the beach or hike to the iconic viewpoint overlooking the 42 islands.

The Koh Phangan is an island in southeast Thailand that’s renowned for its monthly Full Moon Party. This boisterous night-long celebration, which is tied to the lunar calendar, draws revelers to its southeastern peninsula, Haad Rin. Most festivities center on Sunrise Beach, whose beach bungalows attract a backpacker crowd. On the north coast lie quieter, white-sand beaches including Hat Khuat and Hat Thian.

Full Moon Party & Private Charter Boat

Beside the daily running tours, we are running the transfer business to the worlds most famous party on Koh Phangan – the Full Moon Party! If You book with us, You can ensure, that the transfer from Koh Samui and back from Koh Phangan is safe!

For smaller groups or individuals, we have our Private Charter Boat Service, where you are able to book your own boat, operated by our experienced crew. The destinations we are running this service for are: Koh Tao & Koh Nang Yuan, Angthong Marine Park, Koh Phangan or Koh Tan / Koh Madsum.

Koh Tan and Koh Madsum give you a chance to explore two real desert islands. White sand beaches and crystal clear waters with colourful coral reefs, abundant with sea-life, make for a real escape from reality. There are only limited numbers of tour companies with permission to take groups. With Grand Sea Tours, You have the privilege to visit those 2 beautiful islands in the south of Koh Samui.


Our Most Popular Tours



ENJOY  20%  Discount by booking Direct !

Book here: Angthong Marine Park  or Koh Tao / Koh Nangyuan