Crique et Pripri Yiyi is a protected area in French Guiana, France.

The protected area is a wetland, and as of 2008, also a Ramsar site under the name of Estuaire du fleuve Sinnamary.

[3] Crique et Pripri Yiyi is located on the Atlantic Ocean coast[4] in the communes of Iracoubo and Sinnamary.

[5] The word Pripri means marsh in French Guianese Creole,[6] and Yiyi was the nickname of Sylvain Sophie who lived in the village of Trou Poisson during the 19th century.

[5] Crique et Pripri Yiyi is home to West Indian manatees,[3] bush dogs, Capybaras and common squirrel monkeys.