What is big enough for boat travel?

For boat travel, a body of water needs to be sufficiently deep and wide to accommodate the vessel's size and draft. Generally, rivers and lakes should have a depth of at least 5 to 10 feet for smaller boats, while larger vessels, like yachts or cargo ships, require deeper channels, often 15 feet or more. Additionally, the width of the waterway should allow for safe navigation and maneuvering, typically at least twice the beam of the boat. Open seas or oceans, with their vast expanse and depth, are naturally suitable for all types of boat travel.