Explore Lisbon at your convenience with this year-round hop-on hop-off bus tour. Your bus pass allows you full use of all Lisbon bus stops on the Belém, Oriente, Castle, Cascais Lines and Boat . The cherry on top of the cake is a visit to the city Oceanario! Discover the 7 reasons why the Oceanário de Lisboa is one of the best aquariums in the world, with over 8,000 animals and plants of 500 different species