Isla de Santa Clara
You can visit this uninhabited island that rises from the center of La Concha's bay and shields it from high swells. Ferries (around €8 round-trip) run from the mainland every 30 minutes and are packed on summer weekends. Reaching the island from the beach is a fun challenge for experienced swimmers. There's a small bar at the ferry dock and lifeguard service at a beach that reveals itself only at low tide. Bring sturdy sandals as the coastline is rocky. Within the lighthouse is a 15-ton bronze fountain called Hondalea ("Sea Floor"), by Basque sculptor Cristina Iglesias; unveiled in 2021 and open only on select dates (see website), its whooshing flows are meant to mimic the tides.