The CEPA HERNANI HHI is a public centre that offers regulated education to adult students mainly from the municipalities of Hernani, Andoain, Urnieta and Astigarraga.

Its teaching activity is carried out in two areas:
The main centre, located in Hernani (Antziola 62), where the secretary's office and management offices are located and where the cloister sessions, OMR and other general meetings are held.

This centre is also the venue for formal education classes.

The centre of Andoain (Kale nagusia), where classes are given corresponding to the three cycles that make up the regulated education of EPA.