Scuba Diving and Snorkelling in Koh Samui

Compare 47 scuba diving and snorkelling in Koh Samui, with prices from €25. Top rated: 3-Day PADI Open Water Diver Course, Koh Samui (5.0★).

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What travellers say

Recent reviews of tours and tickets on this page.

gdechi·2026-09-09· ★ 5.0

Full Day Diving Activity in Thailand with Lunch

TOP organized diving trip to Sail Rock

The price is not exactly a bargain, but you are well taken care of, get a 3-course lunch on the boat, and are picked up and brought back to the hotel absolutely on time.

Sightseer57644903358·2026-08-21· ★ 5.0

Dive Trip Experience in Koh Tao

Diving

It was my first dive and the best of my life. The instructor, Florian, explained everything, so I wasn't afraid; he was always right there and ready to help.

C717LClouisem·2026-01-24· ★ 5.0

Pig Island & Koh Tan Tour by Speed Boat (Snorkeling & Kayaking)

Big thank you Cola

Great tour pig island is well worth the visit, we were lucky to have perfect weather. The food at Koh Tan was amazing and plentiful. Our guide Cola made the tour easy and fun. The snorkeling was fantastic with a fresh water shower after with plenty of cold bottled water supplied. Very glad we chose happy Samui tours.

Frequently asked questions

How much do scuba diving and snorkelling in Koh Samui cost?
Prices start at €25 per adult for the Angthong National Marine Park by Highsea Tour (Official). Most of the 47 options on this page cost between €55 and €191. Private and full-day options cost more.
Which languages are the tours in?
English is the most common, offered by 42 experiences, followed by German, Thai, French and Russian. Use the Language filter to narrow the list.
Do scuba diving and snorkelling in Koh Samui have free cancellation?
Almost all do. 85% of the options on this page can be cancelled for a full refund, and each experience page shows the exact deadline.
Do any experiences include pickup from my hotel?
44 experiences on this page include pickup, such as the 3-Day PADI Open Water Diver Course, Koh Samui. For the rest, the meeting point is in your booking confirmation.
How long do scuba diving and snorkelling in Koh Samui last?
Most last about 8 hours. Two options take 2 hours or less, and the longest lasts 3 days.
Will my booking be confirmed straight away?
For 39 of the 47 experiences, yes: you get an instant confirmation and a mobile voucher. The rest are confirmed by the operator, usually within 48 hours.
Which tour do travellers rate highest?
The 3-Day PADI Open Water Diver Course, Koh Samui is rated 5.0 from 57 reviews, the highest on this page among experiences with at least 50 reviews.

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