First Ever SwimRunHydra Runs November 16 Thru 18 2018-10-09 by Aleksandr Shatskih The first-ever SwimRunHydra will be held from 16 to 18 November on the popular island of Hydra. The event is part of the TRIMORE Multisports TOUR and is co-organised by the Municipality of Hydra and Sailing Club of Hydra.