
moderate
11 hours
Moderate fitness required: able to climb 241 uneven stone steps and stand or walk for several hours.
Spend a day along Biscay’s north coast: climb the 241 steps to San Juan de Gaztelugatxe, wander the fishing streets of Bermeo, watch Mundaka’s famous surf and absorb Gernika’s history — finished with a txakoli tasting at Bodegas Berroja. Full-day pickup from Bilbao.
You meet the van by the poppy sculpture outside the Guggenheim, the city still damp from the morning tide. The guide checks names, folds a map, and the bus eases out toward the coast; Bilbao shrinks behind a ribbon of estuary and factory chimneys.

Stone steps at Gaztelugatxe are uneven and can be slippery when wet; sturdy, treaded footwear makes the climb safer and more comfortable.
Coastal winds can be cold and persistent even on sunny days — pack a light wind shell to stay warm on viewpoints.
There’s moderate walking and stair climbing; carry at least 1–1.5 liters of water and a compact snack to maintain energy.
Sea spray and sudden weather can harm electronics — use a waterproof case or plastic sleeve during the coastal sections.
Gaztelugatxe’s hermitage is dedicated to Saint John the Baptist and the site has been a coastal landmark for centuries; Gernika is central to Basque political history and memory.
This region sits within the Urdaibai Biosphere Reserve—stick to marked paths, avoid disturbing nesting birds, and support local producers to keep tourism sustainable.
Provide grip and ankle support for the stone steps and coastal paths.
Blocks gusts off the bay and keeps you warm during exposed viewpoints.
Keeps you hydrated throughout the day; there are limited potable water stops on the trail.
The coastline and villages offer numerous photo opportunities—spare power avoids missed shots.