Both the light on Isola della Bisce and Canale della Bisce (the small beacon in the foreground) mark the passage between the mainland of Sardegna and Isola della Bisce. Beyond this I cannot find any information about these two beacons.

Directions: Overview map   

• From Palau in the north take SS125 south for appx. 17km to the intersection with SP59.
• Take a left onto SP59 and travel on that for appx. 13km until you get to Porto Cervo.
• Once there you should ask where Isola della Bisce is. My maps aren't detailed enough to give directions beyond this.