The island has five forts which bear witness to it's past as defences for Port Cros. The oldest fort dates from François I° reign (Fort du Moulin). Only two of the forts are open to the public : the Fort de l'Eminence (30 mn by foot from the port) and the Fort de l'Estissac (15 mn by foot from the port). The latter is an ideal vantage point to view the island.

Since 1963, the entire island has become a National park and is unique in Europe as the park takes in a maritime zone which extends 600 metres around the coast. In the extraordinarily clear waters which surround the island a signposted underwater "nature" trail has been created, just like the long distant footpaths! Along this "route" you can discover the incredible range of underwater flora and fauna but be careful as all the fish and fauna are protected, you can go underwater fishing here! The underwater guided visit is free, but bring your mask, snorkel and fins!
The underwater tour starts from the La Palud beach. Leaving the port, behind the fort take a fantastic path which offers sea views which will make your skin tingle with wonder. The beautiful odours from the mediterranean fauna are everywhere, the shady walk takes around 30mn, or 30 minutes of beauty. Then you'll arrive at the sandy beach , not too small or too large with a few tress which offer welcoming shade... Opposite, and at your feet you'll see the sea, shimmering with no boats to obscure the fantastic view because boats are not allowed to moor in the beach in order to protect the underwater species... This is the closest to paradise you'll find!

True nature lovers will be amazed at the range of rare and wild protected species which you can discover on the island thanks to more than 35 km of signed paths and trails around the whole of the island. Be amazed by the botanical trail or discover the landscapes of Port Cros along the ridges (3h), the tour around Port Man (4h) or the beach (30mn).