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It's been a while since I've been back to Brazil, so things have probably changed a lot … But I think you might enjoy a trip up the Rio Negro from Manaus to see the Anavilhanas archipelago. It's super pretty, and there are some gorgeous white sand beaches up that way. You might have a look at the Ariau Towers in Manacapuru -- I've never been to the hotel itself, and it's kind of a touristy place, but Manacapuru is a nice city, or at least it used to be. :) And of course you'd have to go out and see the Encontro das Aguas (confluence).

North of Manaus, Presidente Figueiredo has some cool waterfalls. And if you feel like paddling a canoe through some tropical floodplains during high water, go downriver a bit from Manaus, toward the Lago do Puraquequara near where I grew up. That whole area is rich in history, both geologically and archaeologically.

Awesome, that all sounds amazing! Thank you so much!

Gave you an upvote as I felt your comment 'very good'.

Wish that I could go & view the waterfalls; #Nature is so great. I've seen a lot of Falls in my time (Yellowstone, Yosemite, Maui ).

FELIZ NAVIDAD !

Why thank you very much @janashby -- Feliz Navidad, Feliz Natal, Merry Christmas, and also Happy Holidays, too :)