Among the more interesting locations frequented by nautical tourists, Greek islands and the Croatian coast offers services at more than 50 ports, touting it as Mediterranean as it once was. Croatia's Greece's efforts have been so successful they have been offered to the tourism industry as a model for sustainable nautical tourism. During this year's Adriatic Boat Show the official ceremony of opening the construction site of marina for mega-yachts has been held. Marina Mandalina & Yacht Club, situated in Šibenik, in 2011 will be able to accept 79 yachts up to 100 meters in length and provide them a complete service. Italy has gone to great lengths to attract boating tourists to its ports as well.