Urdaibai Nature Reserve

Urdaibai Nature ReserveThe beautiful sandy estuary which forms the Urdaibai Nature Reserve, with world class surfing in Mundaka at its mouth and historic Gernika at its tail is undoubtedly one of the most beautiful spots along the Basque coast. Declared a UNESCO biosphere reserve this is a haven for a host of migratory birds and other rare wildlife - and it's got fantastic beaches too!