Penna Island is part of the Drenia Islands and the next biggest island after Drenia. The island is in the shape of an hourglass and the waist of the hourglass has two beaches, one on either side. The beach facing the shallow lagoon is a soft sandy beach with shallow water and no organization. The other beach faces the other direction towards Ouranoupoli. This beach is also a sandy/pebble beach with some rocks on the seafloor. Both beaches are good to relax and with few tourists, those who rent a boat to get there or those who swim over from Drenia.
Penna Island beaches are reached by personal rented boat from Ammouliani or if you swim there from Drenia.