Buy DIY Micro-Camper
https://www.duckworks.com/product-p/ks-minicc-id.htm
When in boat mode, the unique DIY micro-camper boat can seat up to 4 people and measures 12 feet long x 4 feet wide with a weight capacity of 750 lbs.
Flip the boat back into camper mode, and it’ll sleep 2 adults comfortably, and measures 7 feet long x 4 feet wide x 4.5 feet tall.
It’s perfect for camping lovers, fishing lovers, hunting lovers, or someone who’s just looking to test their woodworking or boat building abilities.
The builder can add things such as a canvas canopy over the hull modules, an attached fold up exterior camper tent for use on rainy days, a folding mast and rudder to take advantage of prevailing winds, and more.
The basic geometry of the hull is simple, so adding functional components should pose no problem to ambitious builders.