We purchased the pass on the canal boats and rode around the city by water. Loved it as it was flat rate and allowed you to get on & off as much as you wanted. Very nice walkable city. We wished we'd had more time in port.
Beautiful city! A bus ride was necessary from the port. Very walkable with many shops. We were led to believe that shops might be closed on Sunday, but found everything open. A ride on the canal boat is a must.