Cruises from Amazon River
Arguably, no other place is more critical for human survival than the Amazon rainforest. The Amazon River, covering almost half of Brazil in South America, is the widest river in the world, the second longest, and plays a key role in global carbon cycles and climate. Due to its thousands of lengthy tributaries - 17 are over 600 km in length – it produces 20 percent of the world’s fresh river water. Indeed, its river water reaches 320 km out to sea and till this day ships anchor in the outflow to remove the salt water marine life, especially barnacles, attached to their hulls.
The largest cruise vessel to sail up the Amazon is Cunard's Queen Elizabeth.