Today the Mani's coastal villages are full of cafés and souvenir shops. The peninsula attracts visitors for its Byzantine churches, Frankish castles, sandy beaches and scenery. Some popular beaches during the summer are Kalogria and the beaches by Stoupa harbor, while Kardamyli and Agios Nikolaos have good pebble and sand beaches, too. The ancient tower houses of Mani ("pyrgospita") are significant tourist attractions, and some offer accommodations for visitors. The Vlychada Cave at Pirgos Dirou, near Oitylo, are also a popular tourist destination. As they are partly underwater, visitors tour them in "gondola"-like boats.