At the hands-on Swiss National Park Centre, an audioguide gives you the low-down on conservation, wildlife and environmental change. The tourist office here can provide details on hikes in the park, including the three-hour trudge from S-chanf to Alp Trupchun (which is particularly popular in autumn, when you might spy rutting deer) and the Naturlehrpfad circuit near Il Fuorn, where bearded vultures can often be sighted.