All the swimming races will be held in one of the most famous bays of Poros, by the verdant Russian Navy with the surviving ruin of the Russian fleet warehouses. The bay is protected by the island of Daskalio, and it has an organized beach, canteen and toilets.
The start will be given at the beach of the Russian Naval Station. The athletes will pass clockwise (right turn) on the first buoy, passing Daskalio Island on their right and a right turn on the second buoy, and swim to the starting line. Then, they will exit the water, walk or run clockwise over the race timing carpet, and then re-enter the water, repeating the same swimming course before finishing at the starting line. Basically, the swim course is twice the same triangle.