How To Get Around Tenerife By Bus
Buses are called "guaguas" in Tenerife. They are run by the company TITSA covering every corner of the island using a modern fleet of bright green buses. You can pay on the bus for each trip or buy a "Ten mas" bus pass, a credit card like pass, that can be topped up as you need. These passcards can be used on all routes and shared between several people saving about 50 per cent on the price of a ticket.
You can buy a "Ten Mas" card in any TITSA bus station (but not on the bus itself). They are also sold in many shops showing a TITSA sticker. If you don't have enough credit on your bus pass for the trip, you can pay the difference in cash but not with another pass.