Done during the 2022 edition of the swim race "da porto a porto" in august 8th 2022.
Start line on the panoramic street "strada panoramica" at the crossing with the descent to the beach "spiaggia lunga", arrival at Hotel La Caletta in Porto Santo Stefano.
I had 2 liters of water and a coupld of snack. Start at 6.30. It's 25km and a bit less than 600 meters altitude gain. No big steep hill, up and down.
Water can be found at a bar (bar Mar morto) after 10km next is at arrival so bring your own
Most part of the course is on concrete just 2 km are on terrain, great views on the Tuscan Arcipelago, Giglio and Montecristo islands
This course can be done for sure in a shorter time (even by my self), i only register it as it could be inspiring for someone else.