San Juan de Gaztelugatxe and the Biscay coast

Follow the BI-631 and then the BI-3101: in roughly 45 minutes from Bilbao, the Biscay shoreline opens up, with Gaztelugatxe just 35.4 km away. The terrain steps down in ledges — limestone cliffs, pocket coves, and the westerlies that drive Bay of Biscay swells. San Juan de Gaztelugatxe rises via 241 stone steps to an islet hermitage rebuilt after the 1978 fire. Beyond lie Bermeo with its bonito fleet and trapezoid harbor; Mundaka, famed for its hollow left in a UNESCO-listed Biosphere Reserve; and Gernika, guardian of the historic oak of Basque law.

From there, the day flexes with tides and visits: hotel pickup, a Mercedes at your disposal, and unhurried stops for light and appetite. With a Basque private chauffeur in Bilbao, start at the Gaztelugatxe viewpoints with timed-entry secured if needed, then drop down for an Atlantic-front lunch — marmitako or chipirones depending on the catch. The afternoon threads coastal lookouts, coves, and villages; you taste and explore while your driver handles the road and waits, ending in Gernika for the Casa de Juntas and the Guernica replica before an easy A-8 ride back.