Gaua offers spectacular hikes, including a grand, difficult two-day test that visits the island's three major sights - pretty Lake Letas, one of the largest freshwater lakes in the Pacific; Mt Garet (797m), a semiactive volcano; and fabulous Siri Falls.
Climb up to the lake, where you canoe across to the volcano, a sulphurous mess that seeps orange into the lake. It's worth the effort, in an awesome way. Then it's a vicious trek down to the falls, 120m of roaring power pummelling down through the bush to the sea.
