Hubert Kisiński
From Openwaterpedia

Amazon Bikes used by Hubert Kisiński and Dawid Andres to cycle 6,992 km (4,345 miles) along the length of the Amazon River in 2016
Hubert Kisiński is a Polish adventurer, together with Dawid Andres, used an Amazon Bike to cycle 6,992 km (4,345 miles) along the length of the Amazon River in 180 days on specially designed bikes that enabled him to pedal both onshore and on special pontoons.