land area. Although the island is 25.2 km long, it is no wider than 2.5 km. The park is managed from the town of Murter, on the island of Murter, and is connected to the mainland by a drawbridge. Zadar, the largest city in the region, gained its urban structure in Roman times; during the time of Julius Caesar and Augustus, the town was fortified and the city walls with towers and gates were built. On the western side of the town were the forum, the basilica and the temple, while outside the town were the amphitheatre and cemeteries. The aqueduct which supplied the town with water is partially preserved. Inside the ancient town, a medieval town had developed with a series of churches and monasteries being built. The interior has mixed plains and mountains, with the Paklenica canyon as the main attraction. Paklenica National Park is the most visited climbing site in Croatia, and the largest in Southeast Europe. The close proximity of seawater allows tourists to combine climbing, hiking and water sports. There are over 360 equipped and improved routes of various difficulty levels and lengths within Paklenica's climbing sites. The main climbing season begins in spring and ends in late autumn. The Park area contains 150–200 km of trails and paths intended either for tourists or mountaineers. The trails in the Park are marked with boards and mountaineering signs. The island of Pag has one of the biggest party zones in Europe in the town of Novalja and Zrće. These beaches have all-hours discothèques and beach bars operating during summer months. Šibenik This is another yachting region, dotted with islands, and centered on Šibenik and the Cathedral of St James, a UNESCO World Heritage site. Several fortresses, remnants of the Renaissance era (which includes St. Nicholas Fortress) surround the city. The interior has the Krka National Park with waterfalls and religious monasteries. Skradinski Buk has attractions and facilities available among various footpaths, sightseeing tours and presentations, boat trips, restaurants and a museum. Roški Slap, located near Miljevci, is the second most popular attraction of the Krka National Park in terms of numbers of visitors, and its cascades can be visited throughout the year. Roški Slap may be reached by excursion boat operated by the Krka National Park, although the falls can also be reached with a public road. Inside the park is the island of Visovac which