1. The base rental rate
The rate you see on a marina's site is usually the flat charge for the boat over your reservation period. Peak summer weekends on popular lakes cost more than midweek shoulder-season dates on the same fleet. Larger, newer, and more amenity-heavy boats cost more than compact family boats. When comparing lakes, look at total cost for the exact dates and length of stay you want, not just the headline nightly rate.
2. Fuel
Fuel is almost always billed separately when you return the boat. Consumption depends on the size of the boat, how far you cruise, how much you idle, and whether you run a generator overnight. Marinas typically ask for a fuel deposit at check-in and settle the difference at check-out. If fuel matters to your budget, plan a route that minimizes long cruises and ask the marina for typical usage on the boat you're renting.
3. Deposits
Expect a reservation deposit at booking (often a percentage of the rental) and a separate refundable security or damage deposit at check-in. Some marinas combine a fuel deposit into the same hold. Refundable amounts are returned after the boat is inspected on return, minus any charges for damage, cleaning, or fuel.
4. Groceries and provisions
You're feeding your entire group for the length of the trip. Costs scale with group size, meal complexity, and location — remote lake-adjacent grocery stores cost more than a supermarket in your home city. Buying most of your groceries before you drive out, and only picking up perishables locally, is a common way to control this line item.
5. Add-ons
Kayaks, paddleboards, tubes, water slides, jet skis, fishing gear, and generator usage are typically add-ons with their own pricing. Ordering them with the boat is usually cheaper than trying to add them at check-in. Not every add-on is worth it — talk to the marina about what your group will actually use.
6. Cleaning and damage
Marinas usually require the boat to be returned reasonably clean or charge a cleaning fee. Damage above normal wear is charged against your deposit. Reading the contract, taking check-in photos of the boat, and respecting the marina's rules on shorelines and anchoring will keep this line at zero.
Comparing two trips
When comparing lakes or dates, add each category above for both options — base rate, fuel estimate, deposits, groceries, and add-ons — and compare totals. A cheaper base rate on a lake that's four hours farther away often loses money once you count fuel for the car, an extra hotel night, and higher grocery costs at the destination.
Keep planning
Published 2026-07-16 · Last reviewed 2026-07-16. Marina policies, fees, and state boating rules change — always confirm details with the operator and your state boating agency before travel.