As the title suggests, this is the Riverine partner to the TSIA Safari Deck.
Whenever a party of Explorers, Hunters, Soldiers sets out to travel up or down any of Africa's many rivers and waterways--whether by raft, canoe, or steamer--there are special risks and opportunities. Sudden rapids, waterfalls, swamps, Native ambushes from the banks, attacks by fleets of war canoes, encounters with hippopotamus, crocodile, elephant, and the ever present risks of submerged obstacles, engine troubles, damages to the vessel and its parts, risks of capsizing, loss of stores--and people!--are only some of the things that make for games the likes of which you've never played before.
This deck has its own special "ambiance" with particularly appropriate contemporary art and other graphics, as well as the obligatory "extra card" with ideas for use.
—description from the publisher