Izaro (Urdaibai)

Izaro (Isla de Izaro) is a remote, exposed big-wave surfing spot off the coast near Mundaka in Urdaibai. It is a right-breaking reef break on a reef/coral-rock bottom, known for powerful, hollow/epic waves that can hold unusually large swells. On suitable northwest swell, the wave can deliver very long rides (often in the 150–300 m range on good days), and sources describe it as holding massive swell that would close out other nearby options. Conditions are highly dependent on the swell and wind setup, making the spot more episodic than consistently predictable. Access is boat-only from Mundaka (reported distance roughly 500–700 m out in front of the island). The combination of sharp rocks/jagged reef, strong currents, and very powerful waves makes this a high-risk environment: it is repeatedly framed as pros or kamikaze level only, with tow-in required for big-wave days. Safety guidance emphasizes not going alone and watching tide transitions closely because wave character can change as the tide turns. Seasonally, August is cited as the best month in one surf guide, while other references describe a stronger big-wave opportunity during autumn/winter. Water temperature varies significantly through the year, so wetsuit planning is important; winter months typically call for thicker suits plus additional protection (boots/hood referenced in seasonal guidance). Overall, the spot’s combination of rarity, difficulty, and epic wave quality is what drives its reputation—usually with little to no crowds due to the technical access and performance requirements.