Seven Bays Marina
Davenport, WA · Lake Roosevelt Adventures (NPS concessioner)
Marina details →WA · Cost Guide
Lake Roosevelt Houseboat Rental Cost
Lake Roosevelt has a short but reliable rental season, and pricing is shaped by a compressed calendar rather than by boat-class range. Two concessioner marinas — Seven Bays and Keller Ferry — run the fleet, and cost differs mostly by which marina and how new the boat is. Weeks that fall inside July and early August command the highest quotes.
Why no dollar amounts? Rental quotes at Lake Roosevelt change with fuel prices, season, marina, boat, and week. Rather than publish numbers that go stale, this page explains what actually moves the cost so you can read a real quote well. For live rates, request availability for your dates.
What drives cost at Lake Roosevelt
Marina
Seven Bays and Keller Ferry publish independent fleets and rates. Their access, drive times, and boat mix differ.
Boat class
The gap between an older economy boat and a newer family or luxury boat is the biggest cost step.
Compressed season
The rental window is roughly late May to September. Peak weeks are scarce, so premium dates hold their price.
Fuel
Fuel is billed on use. The lake's 150-mile length rewards long cruises but adds fuel.
Season and pricing calendar
Peak: mid-June through Labor Day. Shoulder: late May and September — cool nights, warmer water than expected, and clearly lower rates.
Rental season on record: Typically May through September, with the strongest window from late June through Labor Day.. Peak: July through early September..
Extras billed on top
Ski boats, wave runners, kayaks, and paddleboards rent separately. Fuel, cleaning, taxes, and refundable security hold are on top of the base rate. Washington boater-education documentation may be required.
Marinas to quote for Lake Roosevelt
Getting quotes from more than one marina on the same dates is standard here — feature-for-feature pricing can differ. Verified 2026-07-16.
Keller Ferry Marina
Wilbur, WA · Lake Roosevelt Adventures (NPS concessioner)
Marina details →Booking tips that affect final cost
Book July weeks 6–12 months out. Ask about fuel calculation, generator hours, pump-out logistics on a long lake, and any cruising restrictions upstream toward Grand Coulee Dam.
Cost context last reviewed 2026-07-21. Confirm current rates with the marina before booking.
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