A full day exploring Porto, visiting the Church of Carmo, experimenting with new foods, and making a new friend with Porto advice to share. A riverboat ride, to see the six bridges and the Porto riverfront. A stop into the Livraria Lello, a fancy book store, crowded with tourists and a long lineup to get in, that apparently inspired the Harry Potter books (hence the Harry Potter room.) Finally a sunset from the Ponte Luís I, the main pedestrian bridge between Porto and Gaia across the river, before the train back to Campo base.