In the waters from which Portuguese navigators set out to discover the world, the waters of the river that touches the city of Lisbon, the first invitation is for a boat trip. With a multiplicity of proposals, the challenge lies in the choice: from a sailboat where, felling the wind, people can discover the local cuisine (especially the one that has a connection with the sea) to diving, photography or parties with the sunset in the background. In another perspective, the solutions are also multiple: from group trips to private tours, with different types of boats being chosen, the challenge is, in truth, to make a discovery.