A summer-must in Riederfurka (2065m), a chairlift ride or 20-minute walk uphill from Riederalp (1925m), is this exhibition on local flora and fauna and Alpine garden. It sits inside Villa Cassel, an exquisite half-timbered villa built as a summer residence on the slopes for a rich Englishman in 1902. End in the tea room with a delicious cup of tea and organic cake.