In my last post, I described the pier at Manaus rather than Santarem. If You take a tour in Manaus which requires a regional boat, you board the boat not too far from the ship. However, if you want the city tour at Manaus, there is a hard walk to get to the taxi and bus parking arera. In Santarem if you take the river tour the boats also are right at the pier. Not sure about the city tour at Santarem. Sorry if I confused anyone.