Safari trips split spending in two: the lodge package paid long in advance, and the cash layer that makes the trip work on the ground. Order your travel money before departure from a commission-free provider such as Travel FX and the second half is handled.
Ranger and tracker tips, curio markets, village visits, park fees paid locally and drinks at remote camps generally want cash, with lodge guidelines setting sensible tip ranges.
Local currency works everywhere; US dollars are widely accepted at lodges in several safari countries. Many travellers carry a measured mix of both.
Travel FX is a UK online exchange with more than 18 years of trading, over 60 currencies and a 5-star Trustpilot rating.