The excursion continues to discover the Park, its naturalistic treasures and structures that still testify to the ancient and recent history of the island. The next stop is on the narrowest point of the island, Cala di mackerel from within, where you can admire the outcropping rocks called "the dwarfs", a place chosen for the nesting of different species of water and sea birds. Once in the central part of the island, another stop is made in Campo Perdu, a former prison branch, where today there is a riding school where you will have the opportunity to see horses, goats, white and gray donkeys up close. Compatibly with the state of health of the hospitalized animals, there will be the opportunity to visit the Park's Marine Turtle Recovery Center, managed by the C.R.A.M.A. Once you have passed the next branch of Campo Faro, you will arrive in Cala Reale, the former quarantine maritime station, operating from the late 1800s until the early 1940s. The last stop on the concrete road is the small village of Cala d'Oliva, with the Central Branch, a prison converted into an Environmental Education Center, for school groups and others. The excursion finally includes the arrival at Cala Sabina beach, one of the most beautiful beaches on the island, where fans of the marine world can swim and snorkel. The return to the pier of Fornelli is scheduled around 17.00 to embark departure from 17:00 - 17:15. Expected arrival in Stintino at approximately 5:45 pm.