The Canary Islands contain some of the most geographically stunning terrain in the world: volcanic beaches, ancient pine forests, and strange rock formations left behind from a millions-of-years-ago tectonic era. A huge portion of the islands' hotels are mid-range all-inclusives and self-catering aparthotels, but there are upscale accommodations, too. These 15 resorts in Tenerife, Fuerteventura, Lanzarote, and Gran Canaria are the most luxurious accommodations in the Canary Islands.