Things to do in Koh Samui

Planning questions about Koh Samui

What are the best things to do in Koh Samui?

Angthong National Marine Park VIP Small Group Tour is the highest ranked experience in Koh Samui, scoring 96 out of 100 on the Outty Ranking from 928 traveler reviews. Cooking Class in Koh Samui with Micro Organic Garden, Half Day Elephant Home Sanctuary in Samui, Semi-Private yacht adventure to Ang Thong Park’s hidden treasures, Half Day Highlights Koh Samui Tour round out the top five. Outty ranks 120 bookable experiences in Koh Samui, Thailand, and 8 of them score 90 or above.

How much do activities in Koh Samui cost?

The median price across everything we rank in Koh Samui is $89 per person, and the cheapest starting price is $14 on MuayThai Class for Beginners. Guided, small-group and skip-the-line versions sit above the median, and peak weekends price higher than midweek mornings.

Can I book something in Koh Samui for today?

Yes. 120 of the 120 experiences we rank in Koh Samui currently show same-day availability. Same-day slots are limited, so book early in the day where you can.

Is Koh Samui good for families?

Yes. 12 of the experiences we rank in Koh Samui are family friendly, covering short, low-cost activities as well as full-day outings. Check the minimum age on each experience page before booking.

How many days do you need in Koh Samui?

Three full days covers the headline sights without sprinting: one anchor experience each morning, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.

When is the best time to visit Koh Samui?

Prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.

Can I cancel a booking in Koh Samui?

113 of the 120 experiences we rank in Koh Samui offer free cancellation, usually up to 24 hours before the start time. The exact window is shown on each experience page before you book.

How does the Outty Ranking work?

Every experience in Koh Samui gets a single 0 to 100 score built from traveler sentiment, the depth of review evidence, recent booking momentum, price fairness against comparable options in the same city, operator standing and cancellation flexibility. Scores are benchmarked within Koh Samui so a strong local option is not buried by global volume, and anything at 90 or above joins the Outty 90+ Club.