Most day trips here pick one thing: a cruise, a hike, or a kayak. This one does all three, plus a summit with 360-degree views and a village lunch, without feeling rushed.
The day moves from water to forest to mountain and back. You cruise past Cai Beo, bike 2.5 km through Cat Ba National Park, climb to Hai Quan Peak where Lan Ha, Ha Long, and Bai Tu Long Bay all open up at once, then paddle at Ba Trai Dao.
Lunch is cooked by a family in Viet Hai, a village reachable only by water. Transfer, guide, bikes, kayaks, every entrance fee: all in.