A rental car is sometimes a good option for discovering the remote wilderness regions, although TITSA do operate reliable bus services in the remotest spots, such as the Teno Massif via Masca (355), and up the Anaga mountains (247). TITSA even run two daily services up Mount Teide – from Puerto de la Cruz (348) and from Los Christianos/Las Americas (342) up to the Teide Parador, Teleferico cable car, Montana Blanca and El Portillo. The only car rental companies that actually have offices in the airports are: Autoreisen, Avis, Cicar, Europcar, Goldcar (only south airport), Hertz and Sixt.