海了 is a travel and navigation app designed for iPhone users. Developed by Qingdao Ocean Tourism Development Co. Ltd., this app offers a platform for users to explore various sea activities with friends. From sailing boats to fishing boats, cruises, water motorcycles, sports boats, and leisure yachts, 海了 provides a range of sea entertainment options. Whether you are looking to sail, fish, cruise, or enjoy water sports, this app aims to enhance your experience on the sea.

With a focus on sea adventures, 海了 aims to connect sea enthusiasts and provide a convenient way to access different sea activities. Users can easily find and book various sea entertainment options through this app, making it a valuable tool for those seeking oceanic adventures.