Keelboat in D&D 5e costs 3000 gp.
Keelboats and rowboats are used on lakes and rivers. If going downstream, add the speed of the current (typically 3 miles per hour) to the speed of the vehicle. These vehicles can't be rowed against any significant current, but they can be pulled upstream by draft animals on the shores. A rowboat weighs 100 pounds, in case adventurers carry it over land.
Frequently Asked Questions
The Keelboat costs 3000 gp in D&D 5th Edition.