The main building you can see arriving on the beach is an old prison, that was closed in 1961.
Tramariglio beach is not very wide but long and never crowded. You can enjoy the wonderful view of Porto Conte bay and from here also visit the Porto Conte Natural Park where you can make trekking among the Mediterranean scrub, or visit the old prison.
It takes around 30 minutes by car to reach the beach. By bicycle it's around 20 km.