The Pacific Northwest RV loop is the antidote to the Southwest. Where Utah is red rock and desert heat, Washington is old-growth forest, glacial peaks, and coastline that feels like the edge of the world. Three national parks within a few hours of each other, each completely different from the last, and all of them dramatically undervisited compared to what they deserve.

This is one of the best RV routes in the country. Here's how to do it right.

The route

Seattle → Olympic National Park → Mount Rainier National Park → North Cascades National Park → Seattle

Total driving distance: approximately 600 miles. Recommended time: 10–14 days. Two weeks lets you breathe. Three weeks lets you actually know the parks.

Seattle is the natural starting and ending point — major airport, good RV rental options, and positioned perfectly for the loop in either direction. Most people run the loop clockwise: ferry to the Olympic Peninsula first, then south to Rainier, then north to North Cascades.

A note on Washington weather

The Pacific Northwest has a reputation. It's partly deserved. The Olympic Peninsula — particularly the Hoh Rainforest — gets 140 inches of rain per year. The west side of the Cascades is wet. The east side is high desert.

What most visitors don't realize: summers in Washington are genuinely spectacular. July and August bring consistent sunshine, warm temperatures, and the wildflower displays at Rainier's Paradise meadows are among the best anywhere in the country. June is shoulder season — you'll get some rain but the crowds are lighter and the waterfalls are running at full force.

Come in summer. Bring a rain jacket anyway.

Olympic National Park

Olympic is three parks in one — temperate rainforest on the west side, glacier-capped peaks in the center, and 73 miles of wild Pacific coastline on the west. No road connects the three ecosystems. You drive the perimeter of the peninsula to reach each one.

That's not a flaw. It's the whole point. Olympic rewards the RVer who takes time with it.

Where to camp:

Hoh Campground — inside the Hoh Rainforest, the most magical campground setting in the Pacific Northwest. Massive Sitka spruce and bigleaf maple draped in moss surround every site. Rain is frequent but the forest canopy muffles it into background noise. Some of the best birdwatching in the park happens right from your campsite. No hookups.

Book on Recreation.gov → [affiliate link]

Kalaloch Campground — on the Pacific coast with ocean views from some sites. The sound of the surf at night is worth every mile of driving to get here. Some sites accommodate larger RVs. Book well in advance — coastal sites go fast on Recreation.gov.

Book on Recreation.gov → [affiliate link]

Fairholme Campground — on Lake Crescent in the northern section of the park. The lake is an extraordinary shade of blue-green from glacial minerals. Sites are forested and private. Electric hookups on some sites.

Book on Recreation.gov → [affiliate link]

Sol Duc Hot Springs Resort — private resort inside the park with RV sites, full hookups, and access to the hot springs pools. The only full-hookup option inside Olympic. Book directly at the resort.

What not to miss:

The Hoh Rainforest, Hurricane Ridge, Rialto Beach, Ruby Beach, Lake Crescent, Sol Duc Falls. Full guide below.

Best Things To Do at Olympic National Park with an RV →

Mount Rainier National Park

Mount Rainier is a 14,411-foot active stratovolcano visible from Seattle on clear days. Up close the scale is staggering — the mountain rises 8,000 feet above its base in a single unbroken slope covered by 36 named glaciers. On a clear summer day with the Paradise meadows in full wildflower bloom, it's one of the most beautiful places in the country.

Where to camp:

Cougar Rock Campground — the best campground in the park, 8 miles from the Paradise visitor center. Forested sites, some with hookups, well-maintained facilities. Books up months in advance on Recreation.gov for summer weekends.

Book on Recreation.gov → [affiliate link]

Ohanapecosh Campground — on the southeast side of the park near the Grove of the Patriarchs trail. Old-growth forest setting, the Ohanapecosh River running through the campground, electric hookups on some sites.

Book on Recreation.gov → [affiliate link]

White River Campground — at 4,400 feet elevation on the northeast side with views of the mountain and access to the Emmons Moraine trail. No hookups. First-come-first-served on some sites.

Book on Recreation.gov → [affiliate link]

What not to miss:

Paradise, Sunrise, Grove of the Patriarchs, Skyline Trail, Reflection Lakes. Full guide below.

Best Things To Do at Mount Rainier National Park with an RV →

North Cascades National Park

The least visited national park in the contiguous United States and one of the most dramatic. The North Cascades contain more glaciers than any other area in the lower 48 outside Alaska — over 300 named glaciers on jagged peaks that inspired the nickname "American Alps." The park receives fewer than 30,000 overnight visitors per year. You will have trails largely to yourself.

The main access route is Highway 20 — the North Cascades Highway — one of the most scenic drives in the country, closed from roughly November through April due to snow.

Where to camp:

Newhalem Creek Campground — the largest campground in the park complex, in the Skagit Valley near the park visitor center. Electric hookups available. Good base for day trips into the park.

Book on Recreation.gov → [affiliate link]

Gorge Lake Campground — small, primitive, on the shore of Gorge Lake. No hookups. The setting is extraordinary — glacier-carved peaks reflected in the lake. Best for self-contained rigs.

Book on Recreation.gov → [affiliate link]

Colonial Creek Campground — on Thunder Arm of Diablo Lake, the impossibly blue-green glacial lake that's one of the signature sights of the North Cascades. Electric hookups on some sites.

Book on Recreation.gov → [affiliate link]

What not to miss:

Diablo Lake overlook, Cascade Pass, Maple Pass Loop, the North Cascades Highway drive. Full guide below.

Best Things To Do at North Cascades National Park with an RV →

Seattle

Worth at least two days at the start or end of your loop.

Pike Place Market — the original farmers market, open daily, one of the best food markets in the country. The fish throwers are a tourist cliché but the market itself is genuinely excellent — fresh Dungeness crab, wild salmon, local produce, artisan food vendors. Go early before the crowds.

Space Needle — the view from the top on a clear day with Rainier dominating the southern horizon is worth the ticket price. Book online in advance.

Chihuly Garden and Glass — adjacent to the Space Needle, Dale Chihuly's glass sculpture garden is one of the best art experiences in the Pacific Northwest. Better than it sounds.

The ferry system — Washington State Ferries run from Seattle to the Olympic Peninsula and to the San Juan Islands. Taking your RV on a ferry is a practical necessity for the Olympic leg of this loop and an experience in itself. Book ferry reservations well in advance in summer — the Bainbridge Island and Kingston routes fill up fast.

RV parking in Seattle — Seattle is not an easy city for RVs. Most downtown areas have parking restrictions. Base camp outside the city — Renton, Kent, or Shoreline have RV parks with easy access to transit into the city.

The Washington State Ferry system

Getting to the Olympic Peninsula with an RV requires a ferry crossing unless you want to drive the long way around through Olympia. The Edmonds-Kingston or Seattle-Bainbridge routes put you on the peninsula efficiently.

Ferry reservations for vehicles are essential in summer — book at wsdot.wa.gov/ferries as soon as your dates are set. Summer weekends fill up weeks in advance. Missing a ferry reservation means waiting hours for the next available sailing.

The ferry experience itself is genuinely pleasant — the crossing takes 30–35 minutes and the views of the Olympics and the Seattle skyline are excellent.

Practical notes for the Washington loop

Summer is the window. Most high elevation areas — Paradise at Rainier, Hurricane Ridge at Olympic, the North Cascades Highway — are not accessible until late June and may close again by October. Plan your visit for July or August for the best conditions at all three parks.

Rain gear is non-negotiable. Even in summer, rain is possible on any day in the Pacific Northwest. A good rain jacket and waterproof hiking boots make the difference between a miserable wet day and a great one.

Book campgrounds early. The Pacific Northwest has fewer developed campgrounds than the Southwest parks and summer demand is intense. Recreation.gov reservations open six months in advance for most sites — set a reminder and book the day they open.

Black bears are present in all three parks. Use bear boxes at every campground. Don't leave food or scented items in your tow vehicle. The Olympic Peninsula has a healthy bear population and they know what RVs contain.

Cell service drops out on the Olympic Peninsula. Download offline maps before you leave Port Angeles or Forks. Starlink or a cellular booster is useful on this loop.

Gear for the Washington loop

• Wireless internet — cell gaps are significant on the Olympic Peninsula and in the North Cascades. Best Wireless Internet Setups for RVs →
• Surge protector — always at NPS campgrounds. Best RV Surge Protectors →
• Leveling blocks — forested NPS sites are rarely flat. Best RV Leveling Systems →
• Solar kit — many NPS sites have no hookups. Best Solar Kits for Full-Time RV Living →
• RV tires — wet Pacific Northwest roads demand good rubber. Top 10 RV Tires for 2026 →
• Sewer hose kit — full hookup sites are limited on the peninsula. Best RV Sewer Hose Kits →

Explore each park in depth

• Best Things To Do at Olympic National Park with an RV →
• Best Things To Do at Mount Rainier National Park with an RV →
• Best Things To Do at North Cascades National Park with an RV →

Bottom Line

Do this loop in July or August. Book your ferry reservations and Recreation.gov campgrounds the day they open. Bring rain gear you'll rarely need and be grateful when you do.

The Pacific Northwest rewards the RVer who slows down. Olympic alone deserves four or five days — most people give it two and leave wishing they'd stayed longer. The North Cascades rewards anyone willing to hike past the first trailhead. Rainier on a clear day with the wildflowers in bloom is a memory that stays with you.

This is a trip worth doing slowly.

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