There’s a palpable thrill the moment your ship arrives at the so-called Meeting of the Waters, just downstream from Manaus, where for some eight kilometers (five miles) the tan-colored Rio Solimões (a main Amazon source) and the tealike Rio Negro tributary flow distinctly side by side. You’re floating over the very spot where the world’s mightiest river acquires its full identity. And, if you’re lucky, you’ll spot the river’s famous pink dolphins swimming beside your ship.
