Seattle puts all three parks within a day's drive, each taken on its own. But an itinerary that tries to string them all together in a single rental quickly runs into the distances between the parks themselves, not just the round trip from the city. Here's what you need to decide with your eyes open, rather than simply ticking three boxes on a map.
Three parks, one starting city, a time budget that doesn't add up
From Seattle, Mount Rainier is about 140 km away, roughly 2 to 2.5 hours on the road. Olympic demands more flexibility: plan on 2 to 3 hours depending on which entry point you're aiming for, Hurricane Ridge or the coast, whether you go around Puget Sound or take the ferry. North Cascades, via Highway 20, sits around 145 km away, about 2.5 to 3 hours.
Taken one at a time from Seattle, each of these drives is perfectly reasonable in a motorhome or campervan. The problem shows up when you try to link them together. Olympic and North Cascades sit at opposite ends of Puget Sound: getting from one to the other isn't a detour, it's several full hours of driving on top of everything you've already covered to reach the first park.
It's that distance, between the parks rather than from Seattle, that makes the three-park loop unrealistic on a short rental. You're better off choosing one or two parks based on the landscape you're after, and giving them the time they deserve. That's exactly what this article is about.
Mount Rainier: the volcano and its high-altitude meadows
On a clear day, the volcano is already visible from Seattle: a white mass sitting on the horizon, a preview of what's waiting at the end of the 140 km drive. Once there, the landscape unfolds in layers. Down low, old-growth forests, dense and damp, where light barely gets through. Higher up, the subalpine meadows of Paradise, which live up to their name in the warmer months: wildflowers, open views of the glaciers, trails winding between late-lingering snowfields.
It's the most accessible of the three parks as a single-day trip from Seattle, which makes it the natural choice when time is genuinely tight. A there-and-back, a walk around Paradise, and you leave with the essence of the park under your belt.
The downside of that accessibility is the crowds. In summer, the Paradise parking lots fill up early in the morning, and it's not unusual to circle for a while before finding a spot, or even to be turned away once the site reaches capacity.
The Nomad tip
Aim to arrive at Paradise before 9 a.m. during peak season. After that, the main parking lot is often full and the queues to enter the park lengthen noticeably.
Olympic: a park that holds several landscapes within one boundary
Olympic doesn't resemble either of the other two parks, for a simple reason: it isn't one landscape, but several, set side by side under the same name. First, the Hoh Rainforest, a temperate rainforest where moss covers everything, trunks, branches, ground, in a green, filtered light that lingers nearly all year. Then the wild coastline, at Ruby Beach or Kalaloch, battered by the Pacific, bristling with sea stacks and driftwood. And finally the alpine zone, at Hurricane Ridge, with its high meadows and views over the surrounding peaks.
This diversity is the park's great strength, and also its trap. It's easy to picture a single day that strings together forest, coast and altitude. In practice, these three areas are separated by internal distances that are always underestimated on a map: plan on roughly 3 hours of driving between Hoh and Hurricane Ridge, since you have to go around the entire mountain massif that occupies the center of the park. There's no road that crosses Olympic from end to end.
The Nomad tip
Don't attempt all three areas in the same day. Pick one or two based on what you're after, and leave the rest for a future visit.
North Cascades: wild alpine terrain, the least visited of the three
Here, no isolated volcano, no rainforest: sharp peaks standing in tight rows, and glaciers still clinging to the highest slopes. North Cascades looks like a stray alpine range that wandered into North America. Diablo Lake sums up the image people remember from the park: turquoise water, almost unreal, caused by suspended glacial sediment, framed by peaks that drop straight into it.
It's also, of the three parks, the one you'll encounter the least on the road. Fewer motorhomes in the parking lots, fewer people on the trails, viewpoints you can sometimes have entirely to yourself on a weekday. For anyone chasing quiet over convenience, North Cascades beats Rainier by a wide margin.
That quiet comes at a price: the park takes more effort to reach, and above all, it isn't open to the same conditions year-round. Highway 20, the only road that crosses it, closes in winter, generally from mid-November to mid-April depending on snowfall. Outside that window, access changes entirely.
The Nomad tip
If your rental falls outside the summer season, check the status of Highway 20 before building anything around North Cascades: a route planned in winter can end up split in two by a closed road.
How many days for which park
Three to four days available
One park, not two. On this timeframe, the drive from Seattle and the gradual pace of motorhome travel — a real average of 60 to 70 km/h, short 2 to 4 hour stretches — eat into a full day fast. Rainier makes the most sense if ease of access matters most: 2 to 2.5 hours on the road, a straightforward arrival, and the heart of the park reachable from Paradise. Olympic still works on this timeframe if you'd rather vary the scenery than optimize the drive, as long as you accept seeing only two of the three areas, not more.
One week
Two parks fit comfortably into this window, provided you choose them well. Rainier and North Cascades form the most logical pairing: the two sit close together, with no need to go around Puget Sound, which leaves real time on the ground rather than in transit. Another option, slower but just as valid: Olympic on its own, finally taking the time for its far-flung areas, Hoh, the coast, Hurricane Ridge, without rushing through them in a single day.
Ten days or more
All three parks become realistic, on one condition: treat the transfer between Olympic and North Cascades as a leg of the trip in its own right, with its own overnight stop, not as a simple link between two parks. It's precisely that distance, underestimated on the map, that has derailed so many itineraries planned for a shorter rental.
Which vehicle for these mountain roads
Paradise, Hurricane Ridge, Highway 20: these three access points share one thing, tight switchbacks climbing in altitude, and parking lots not built for long vehicles. In peak season, every space counts.
A coachbuilt motorhome, with its overcab bed and bulkier footprint, handles these hairpin bends poorly and struggles to park once there, especially when only the last, tightest spots remain. A campervan threads through the switchbacks more easily and finds a space where a coachbuilt motorhome would have to give up or wait.
It isn't just a matter of driving comfort. At Paradise in particular, where the parking lot fills up early in the morning, the difference in size can literally decide whether you get into the site or have to head back down to look for a spot elsewhere.
Which vehicle for this trip?
For this kind of trip, a campervan parks more easily than a coachbuilt motorhome in the mountain lots of Paradise, Hurricane Ridge or Highway 20, where space runs short in peak season. Worth weighing before you book, especially if Rainier or Olympic are on your itinerary.
From 67 €/day
Frequently asked questions
Can you really do all three parks in a single week?
Not easily, and not in good conditions. A week allows for two well-chosen parks, not three: Rainier and North Cascades combine logically, with no need to cross Puget Sound. Adding Olympic to this timeframe turns every leg into a race against the clock.
Which park should I prioritize if I only have three or four days?
Mount Rainier, for its proximity to Seattle, about 2 to 2.5 hours of straightforward driving. North Cascades remains an option on this timeframe if quiet is your main priority, but expect to spend most of your available time getting there and back.
Do you need to arrive early to get into Paradise, at Mount Rainier?
Yes, significantly. In peak season, the Paradise parking lot often fills up before 9 a.m., and access to the site can be temporarily denied once it's full. An early arrival isn't a nicety, it's a condition of entry.
Is North Cascades open in winter?
Not under the same conditions as in summer. Highway 20, the only road crossing the park, generally closes from mid-November to mid-April depending on snowfall. Outside that window, check the road's status before building an itinerary around this park.
