Ognina, also known as Porto d’Ulisse, is a small creek with cliff like sides and a small beach at its head. It lies 2 miles SW of Aci Castello. On the S shore of the creek is a small harbour used by fishing vessels and providing facilities for yachts and pleasure craft. Temporary Anchorage can be obtained by small vessels in Porto d’Ulisse during offshore winds. The holding ground is good, the bottom being sand and weed. Local knowledge is required for anchoring.