Thalassa Tour Co.,Ltd.

Based in Ao Nang, one of Krabi's main coastal hubs, Thalassa Tour Co., Ltd. organizes guided excursions to the region's most celebrated natural attractions. Popular offerings include full-day trips to Phi Phi Islands and Hong Island, private boat charters, and snorkeling experiences among Krabi's iconic limestone scenery. The company has built a strong reputation for personalized service, with guides — including frequently praised staff members Echy, Tuna, and M — noted for their attentiveness, strong English communication, and ability to adapt to changing conditions on the water.

Visitors consistently highlight the well-organized logistics, punctual departures, and the genuine care staff show in tailoring experiences to the group. Both private and shared tour formats appear to be available, making Thalassa a practical choice for solo travelers, couples, and larger groups alike. The Ao Nang address puts the office within easy reach for visitors staying anywhere along Krabi's main coastal strip.

Thalassa runs small, semi-private speedboat tours and takes bookings on its own site, thalassatour.com. Its Four Islands trip leaves at 13:00 and stays out until 19:30 for the sunset and a night snorkel, at about ฿3,100 to ฿3,400 with the national park fee included, and the Phi Phi day runs from 08:00 to 15:30. The free meeting point is the Krabi Resort in Ao Nang, with paid transfers from Krabi Town, Klong Muang, Tubkaek and Railay. The calmest months for boat days are December to April.