23 June 2018:
Here are two pictures of the vessel. The cabins are on three main decks, with a formal dining room just below the first deck. We were on the second deck near the bow.
On the top is a small swimming pool and jacuzzi, as well as a big covered lounge area. We watched a number of world cup games from there.
In general the ride was very smooth. We could not tell when the ship started moving or stopped moving, and the river is dead flat. At one point I watched water slosh back and forth as the ship settled at anchor in the river, and the bow went sideways a bit rapidly. That was kind of fun.
We ventured out at least twice a day in flat-bottomed skiffs that each held about 25 or so passengers. It was from one of the skiffs that I took the top picture as we returned to the mother ship. The skiffs were powered by two 115 horsepower outboard engines, and they really moved along.
Note the brown color of the Amazon - very silty, current runs at a good clip of 3 mph, and it is wide!
Zero mosquitoes except for a few on a jungle hike. We were happy about that!
Canon 5D