Off the southwestern coast of the island of Hvar, a group of around 20 isles and reefs is situated, known as the Pakleni otoci (infernal islands). Pakleni otoci are a unique and the most distinguished natural beauty of Hvar. Forested isles amidst crystal clear blue sea, countless secluded beaches and beautiful desolate inlets, present a far-known sunny Arcadia of Hvar. The best shelter on Pakleni otoci is the ACI marina Palmižana on the northeastern coast of the isle of St. Klement, which is shielded from all winds. However, in a strong southwestern wind, some tidal waves may occur. Palmižana is the oldest and best known resort on Hvar. It is surrounded by thick pine forests and various other exotic vegetation.