Minecraft wiki entry for Development_versions, associated text: Function similarly to minecart with chests, but in boats instead, so player can take a journey on the water and carry things.
Crafted by combining a chest with any boat.
Opening its inventory or breaking it will make nearby adult piglins angry.
Breaking it drops itself (as opposed to a minecart with chest, which splits into its components), and all its items.
Can hold only one entity.