Cap Blanc is the long limestone headland that closes off the western side of the Bay of Bizerte and forms the northernmost mainland point of Africa. The end of the cape is white-cliffed (hence the name), with a small lighthouse, a coastal road part of the way, and dirt tracks the rest. From the lighthouse promontory the view is spectacular — the cliffs drop straight to a turquoise sea, the bay opens out to the south, and on a really clear day you can see Sardinia.
The drive from Bizerte takes about half an hour, partly on rough road. The beach below the cape on the eastern side — a small crescent of pale sand — is one of the most secluded swimming spots accessible from the city, but the access path is steep and unmarked.
Bring water and a hat; there is no shade and no infrastructure at the cape itself. Combined with a stop at Sidi Salem beach further south, this is the standard half-day excursion from Bizerte.