Amber Mountain is a green island of rainforest in the parched far north of Madagascar, and almost everything living in it is built not to be seen. The forest is there because the mountain makes its own weather. It is a worn basalt volcano high enough to wring rain out of the trade winds, so mist moves through the canopy all year while the plain below stays thorny and dry. It was Madagascar's first national park, in 1958. The animals are the reason you walk slowly here. A leaf-tailed gecko presses flat to the bark behind a fringe of skin that erases its outline. A panther chameleon flares green, red and electric blue and still disappears, because it moves one slow foot at a time. The honest measure of the place is how long it takes you to see one after a guide points at it from a metre away.
A short trail drops to the Cascade Sacrée, where a thread of water falls from mossy rock into a clear green pool. The Antakarana hold it sacred and bring offerings there in thanks when a wish has been granted, so it is somewhere you look rather than swim. The Grande Cascade is a longer walk past the entrance loops, about eighty metres of water into a ravine, loud long before you see it and heaviest at the end of the rains. Lakes fill the old craters — Lac Fantany, Lac Maudit, the Lac de la Coupe Verte — and they sit deep in the massif rather than near the gate, twelve kilometres out on the Cratère Renard circuit. The water lies flat and dark, with the forest coming right down to the rim. And the smallest animal here is the one worth the wait. The Amber Mountain leaf chameleon is barely 25 millimetres from nose to tail, hunts in the leaf litter by day, and topples over to play dead as a fallen leaf when frightened. Guides find it after dark by torchlight, a few centimetres up a twig, because sleeping is the one time it holds still in the open.