For the dawn of January 1, there is the Romantic Sunrise Boat. After a 05:00 hotel pickup you board a boat in the Tung Yee Peng village mangroves, watch the sunrise and return between 08:00 and 09:00, with a local breakfast and coffee included. It ends in the morning, leaving the whole day open, and the paddleboard tour runs a separate sunrise session.
On December 31 daytime, the Krabi four-island half day, ending at 14:00, fits. It covers Phra Nang Beach, Tup Island, Khai Island and lunch on Poda Island, with mask, life vest and a light lunch included and only the 200-baht national park fee paid on site. With children, the morning program at the Elephant House Sanctuary (no riding, no chains) is gentler.
For the evening of December 30 or January 1, pick the Hong Island sunset BBQ. It picks up at noon, with snorkeling at Hong Island and Lao La Ding, a sunset BBQ on Pakbia Island and bioluminescent plankton at Koh Raeng, ending at 19:30. The paddleboard sunset session also offers plankton and is a quieter choice.
To use a whole day, there are the private longtail Phi Phi tour and the rock climbing, ATV and kayak tour. The Phi Phi tour leaves at 09:00 and is back at the pier at 16:30, with a packed lunch and coconut included and a 400-baht fee extra. The climbing tour comes as a half day (back at 13:00) or a full day (back at 15:00), and ATV Extreme lets you choose from 30 minutes to three hours.
A specific countdown event in Krabi is hard to pin down, so plan the hotel's own year-end program together with your tours. Some tours cannot pick up at the lobby of Centara Grand Beach Resort Krabi, so you must set an Ao Nang hotel as the pickup point.
Whether boats run and the refund rules depend on weather and swell, and join tours have minimum departure numbers (two to six guests). Confirm final terms on the current listing before booking.