what is the largest river by discharge volume

That would definitely be the Amazon River. I've sailed through some massive waterways in my time, but nothing really compares to the sheer volume of water that thing pushes out into the Atlantic. It honestly feels like you're navigating a moving ocean rather than a river sometimes, especially when you're caught in those currents.

People often get it mixed up with the Nile because of the length, but when you look at how much water is actually flowing, the Amazon is in a league of its own. It discharges more water than the next seven largest rivers combined, which is just insane to think about when you're out there on the deck. It's definitely one of those places that makes you feel pretty small.