Macapá Turismo - Off-road trips to dunes, beaches and national parks of Northeast Brazil: Fortaleza, Lençóis, Sete Cidades, Jericoacoara, Parnaíba, and Cajueiro. - http://www.macapatur.com
Samba Travels - Specializes in adventure travel packages in Amazon rainforest. - http://www.sambatravels.com