Niak Rafting is the only whitewater operator in French Guiana, running the Saut Maripa rapids on the Oyapock upstream of Saint-Georges in rafts and on hydrospeed boards, with walking trips as well. From fifty-three euros.
The Maripa falls are a serious set of rapids in a remote place, and the company is the reason it is possible to run them at all. They ask to be contacted on WhatsApp or by e-mail to hold a place, and publish the number for it.