Home / Fun Runs / GreeceHydra Island2 fun runs in Hydra Island.November 20251 runsTrail & Nature01 NOVSwimRun HydraHydra Island · GreeceTrail RunIsland8–39KApril 20261 runsTrail & Nature04 APRHydra Trail EventHydra Island · GreeceTrail RunCoastal7–38K