Tenerife's westernmost spot is the Punto de Teno, defined by a candy-cane patterned lighthouse that looks out towards the nearby island of Gomera. A harsh terrain with scant vegetation, high winds, and wide open views, it's a strikingly beautiful place, but not the kind of park you'd want to spend all day at.
The Anaga mountain range is big. We knew that, but didn't realize quite how big, until we drove out to the very last village on the road, Chamorga. Even though our house is directly at the front door of Anaga, it took us well over an hour to complete the drive -- about the same time it takes to drive to the other end of Tenerife!