Karanambu is known for founder Diane McTurk's commendable work rescuing giant river otters deep in southwestern Guyana's rainforest. The McTurk family, who have lived nearby since 1927 and founded a conservation trust in the region, are magnanimous hosts (just ask David Attenborough or Jeff Corwin). The savannah tours, run by the lodge's naturalist, birding, and indigenous guides, are adventure-packed: go deep in flooded forests, tag caiman with researchers, or hike to Amerindian villages. Accommodations are brick-and-thatch huts with mosquito nets. Come nightfall, giant lilies blossom and a century of pioneer tales unfold over Karanambu's signature rum punch. From $180 per person; karanambu.com
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