1. Artxanda Viewpoint
For a wide view over Bilbao and the estuary, take the Artxanda Funicular up to the viewpoint. The city skyline makes a lovely backdrop for a winter evening, especially if the clouds clear. There's space to stroll around the summit, too. An organised New Year's Eve fireworks display or official viewing area has not been announced for 2026-2027, so treat Artxanda as a scenic spot rather than a guaranteed fireworks location. The viewpoint is reached by funicular; check its holiday service before heading up.