Koh Samui has one of the largest choices of tours in Thailand, and the quality varies a great deal. We have narrowed several hundred listings down to twenty that we would be happy to book ourselves: the essential boat trips, the best land tours, a few genuinely good experiences and the transfers that save real hassle.
Everything here is booked through GetYourGuide, which means live availability, free cancellation on most options and reserve-now-pay-later on many. Prices are indicative “from” amounts in euros — the operators charge in Thai baht, so the figure moves with the exchange rate. Tap any card for the live price in your own currency.
One honest gap: GetYourGuide’s Samui catalogue has very few spa and massage listings. For wellness, see the notes in our travel guide and book directly with the spa.

