Badlands of Guimar consist of a volcanic cone, subsidiary cones, and several basaltic lava flows in the Güímar municipality on the island of Tenerife, in the Canary Islands, Spain. They total in area about 290 hectares. The lava flows are quite recent, less than 10,000 years old. The large cone is called Montaña Grande (Big Mountain) and reaches a height of 276 m.
Typical are the Sally Lightfoot crabs (Grapsus adscensionis, red rock crab), tabaiba dulce (Euphorbia balsamifera) and ancient Salt pans.