There are two types of boats cruising Aveiro's canals: the "moliceiro" and the "mercantel". The "moliceiro" was used to carry the "moliço", a kind of seaweed used as fertiliser. The "mercantel" was used to carry sand, mud for the "salinas" (saltern) and salt. The tour visits four canals: - Canal of São Roque, where the Carcavelos bridge and the salt warehouses are located; - Pyramids Canal, that owes its name to the "pyramids" made out of salt taken from the salterns; - The main canal, where you can appreciate the Art Noveau buildings and - Canal do Cojo, the modern part of the city. You can start your tour in the main canal, there are several operators. Timetable : 10 a.m. to 7 p.m. Tickets (standard): €12 (2016) Back to Aveiro Carcavelos Bridge