Biscay sits on Spain's Atlantic coast, where a north-facing shoreline catches consistent groundswell and delivers some of the country's most reliable waves. The swell window is wide, running from north through northwest and into the west, so the region picks up almost anything the North Atlantic sends. A south wind blows offshore across most of the coast, so clean mornings are common when a low-pressure swell lines up with light southerlies.
The coastline offers real variety. Beach breaks make up the bulk of the surf spots in Biscay, backed by sand bottoms that shift through the seasons and suit a range of abilities. Alongside them sit a handful of reefs and points over uneven rock, plus a few river-mouth setups that focus swell into longer, more defined walls. This mix means you can usually find something working, whether you want a forgiving sandbar or a more demanding reef.
Notable spots include Mundaka, the celebrated left-hand river-mouth barrel that draws surfers from around the world when a solid northwest swell meets the right tide. Other spots worth knowing are Bakio and Barrika, both good reference points as you explore the coast, along with Carraspio to the east. Towns like Algorta anchor the western zones near the Bilbao estuary, while clusters around Elexalde and Moreaga add options as the wind and swell shift.
Most spots favour mid to low tide, and many stay rideable across a good part of the tidal range, so timing is more forgiving here than at strict high-tide-only reefs. Size needs vary. The mellower sand breaks come alive on small swells around waist to chest high, while the reefs and points want more push and can hold well overhead when a proper Atlantic system arrives. A few standouts handle serious size.
Autumn and winter are the prime seasons, when North Atlantic depressions track close and send frequent groundswell into the bay. This is intermediate-heavy terrain. Most spots reward surfers who can already read a lineup and handle punchy beach-break sections, and several reefs and points are firmly expert territory. Genuine beginner-friendly options are limited, so newer surfers should choose their days and stick to the gentler sandbars on smaller swells.
Board choice tracks the conditions. Shortboards, fish, and funboards cover most everyday sessions, longboards suit the smaller beach days, and a gun earns its place only on the biggest reef and point swells. Come prepared for cold water and Atlantic power, and let the south-wind mornings guide when you paddle out.
