TRIMORE SwimRun Hydra 2026

TRIMORE SwimRun Hydra sends two-person teams around the car-free Greek island of Hydra, in Attica, for a late-October swimrun day that can stretch from early morning into the afternoon. The format is simple but tough: partners alternate between off-road running and open-water swimming, racing connected by an elastic rope. The main options include a Rookies 7.5k with 7km of running and 0.5km of swimming, an Initiation 12.8k with 10.8km of running and 2km of swimming, and a Core 23.4k with 19.7km of running and 3.65km of swimming. The course is broken into repeated run and swim legs, so racers keep switching between shoes-on running and sea crossings instead of saving the swim for one block. The Rookies and Initiation routes each use four run legs and three swim legs, while the Core route uses six run legs and five swim legs. TRIMORE Sport Events organizes the race as part of a wider Greek tour built around sport, nature, and family participation. Hydra adds its own twist: no cars, rough island terrain, clear water, and a coastline that makes the rope-between-partners rule feel practical rather than theatrical.