SwimRun Hydra 2025-11-01 7.5km/12.8km/23.4km/38.7km Hydra Island / Greece Visit Event Website → About This Event Location Hydra Island Country Greece Date 2025-11-01 Distances 7.5km/12.8km/23.4km/38.7km Why This Event Swimrun event combining trail running and open water swimming with 4 distance options featuring alternating swim and run segments tied together with elastic rope on a fairytale Greek island More Runs in Greece View all runs in Greece