For the latest, and most up to date, information about attractions and events on the island, either of these offices are definitely well worth visiting once you arrive in Santa Cruz:

Oficines d'Informacio Turistica de Tenerife
Cabildo Insular
Plaza de Espana
38003
Santa Cruz de Tenerife
Telephone: +34 922 239 592
Fax: +34 922 239 812

Oficinas Municipales de Turismo
Tourist Information Kiosk
Calle Castillo intersection with Calle Cruz Verde
38003
Santa Cruz de Tenerife

In each of the above offices you will find a wide selection of maps and brochures available, along with a multi-lingual team who have an excellent knowledge of the local attractions, and details of the events going on in the area.