5 Islands Full-Day Tour Around Koh Tao and Koh Nangyuan

Koh Nang Yuan’s three-island sandbar gets overrun by noon, which is why this seven-hour trip builds its day around it rather than treating it as a quick stop. You board a modified fishing vessel at Mae Haad Pier and work your way through five snorkelling sites around Koh Tao: Koh Nang Yuan, Mango Bay, Ao Hin Wong, Aow Leuk and Shark Bay. Hotel transfers are included (except Mango Bay and Lighthouse Beach).

Snorkelling gear and life jackets come with the ticket, and the boat stops long enough at each site to actually see the reefs. Shark Bay is the one most guests remember, where small blacktip reef sharks patrol the shallows. Ao Hin Wong on the quieter east coast and Aow Leuk on the south offer calmer water and decent coral. Lunch is a Thai-style box eaten on deck, with fresh fruit, drinking water, coffee and tea through the day. The guide takes free underwater photos, which is a nice touch given most operators charge extra.

Pace is steady rather than frantic, with enough swim time at each stop to unwind. Not ideal if you hate boats, as open water between islands can chop up in the afternoon. Bring reef-safe sunscreen, a rash vest for sun protection and cash for the Koh Nang Yuan entrance fee (not included). Basic accident insurance is covered, but no diving options here, this one is pure snorkel. The modified fishing vessel is slower and rockier than a speedboat but gives a more local feel, and the hull sits lower, which helps getting in and out for snorkel stops. Worth booking a day or two ahead in peak season as this operator caps group size.