We stayed at the Manatus in Nov-Dec 2011. A wonderful hotel with excellent accommodation, food and service. The location was magical, on the river, backing onto the jungle with howler monkeys present in the hotel grounds most days. The rooms were very comfortable and surprisingly free of any wildlife. They could be noisy from the air-conditioning or the loud tropical rain on the roof but our stay was the highlight of our trip to Costa Rica.
This was not the best time of year to see turtles but sloths, monkeys, otters, toucans, iguanas and a boa constrictor were expertly pointed out by our guide on our river trips.
The staff were friendly and attentive and the food was delicious.