Though not yet one of the more popular adventure sports in Guyana, there are a lot of rivers that are ideal for whitewater rafting and expedition-style kayaking. Recently, three women actually kayaked their way from the source to the mouth of the Essequibo River. You can learn more about their journey here. A shorter, 21-day version of this trip is available on the upper Essequibo River. It covers 150 miles and features over 50 rapids.