This mod is part of The Vanilla Experience.
A drag-and-drop mod which allows players to easily move boats without breaking them by holding right click.
You may also be interested in Move Minecarts.
mustSneakToPickUp (default = false): When enabled, will only pick up the boat when the player is sneaking and holding right-click.
To pick up: Hold right-click while looking at the boat. You can release the mouse button while moving the boat.
To release: Either right-click the boat again, or press the sneak button.
Easily put the boat into the water:
And easily put them back on a dock: