TenerifeTenerife A Walkers Island. Tenerife is a big island 2034 square kilometres big. It offers walkers a wide variety of exciting landscapes to choose from; everything from coastal strolls, high altitude summits, pine forests and laurel forests, challenging and strenuous routes to easy country walks. Walk! Tenerife is a comprehensive walking guide book to Tenerife's best walking. 42 fully detailed walking routes with large scale maps. GPS Waypoints for all