Book excerpt: A guidebook to trekking the GR221 – also known as the Drystone Route – through the spectacular mountains of Mallorca’s Serra de Tramuntana. Best suited to those with some experience of long-distance walking, the route is mostly on clear paths and tracks, but some of these can be rough underfoot, and occasionally steep, and some sections require careful route-finding. The main route extends 141km (88 miles) from Port d’Andratx to Pollença and is described in 10 detailed stages of between 9 and 20km (5–12 miles). Also included are alternative starts from s’Arracó, es Capdellà and Calvià, and alternative finishes to Cala Tuent, Alaró, Orient, Caimari and Port de Pollença. 1:25,000 Alpina mapping for each stage Extensive information on public transport, accommodation and refreshments, including accommodation listings Optional detours to climb neighbouring peaks Advice on preparation and planning History, plants and wildlife and local points of interest