The rainforest is the Hoh, and it is a long way from anywhere. The Hoh Rain Forest is about a two hour drive from Port Angeles and just under an hour from Forks. It averages 140 inches of precipitation a year, which is why it looks the way it looks. The Hall of Mosses loop is 0.8 miles, the Spruce Nature Trail is 1.2 miles, and the Hoh River Trail runs out as far as 18.5 miles if you have older children and a full day.

The alpine part is Hurricane Ridge, 17 miles south of Port Angeles. It is the one place you can drive up into the mountains, and on a clear day you look straight across at the peaks. Two warnings. The day lodge was destroyed by fire and is gone, so plan for no indoor facilities. And in winter the road is scheduled to open only Friday through Sunday plus holiday Mondays, weather permitting, with all vehicles required to carry tire chains.

The coast is a separate strip entirely, and it is the part people underrate. Sea stacks, driftwood the size of telephone poles, tide pools and fog. It is not a swimming beach and nobody should arrive in a swimsuit. Check a tide table before you go down to any of it, because the difference between a wide beach and no beach at all is a few hours.

Entry is 30 dollars per vehicle and it lasts seven consecutive days. On foot or by bicycle it is 15 dollars per person for anyone at least 16 years old, and children 15 and under are free. An Olympic annual pass is 55 dollars and pays for itself the moment you would have bought a second vehicle entry. Given how spread out the park is, that seven day window is the point. You will be entering more than once.

Plan it as a loop, not a base. The honest minimum is three nights and I would rather you took four. A workable shape is two nights on the north side for Hurricane Ridge and Lake Crescent, then move to the west side for the Hoh and the beaches. Trying to do the Hoh as a day trip from Port Angeles means four hours in the car to walk a 0.8 mile loop.

As things stand for 2026, timed entry reservations are not required anywhere in Mount Rainier National Park. The park ran a timed entry pilot in recent summers for the Paradise and Sunrise corridors, and a lot of older articles still describe it as current. The park’s own fee page states plainly that reservations are not required anywhere in the park. This is the kind of rule that has come and gone before, so check the park website in the fortnight before you travel rather than trusting any guide, including this one.

Entry is 30 dollars per vehicle for seven consecutive days, or 15 dollars per person on foot. An annual pass for the park is 55 dollars. If you are also doing Olympic in the same trip, do the arithmetic on the America the Beautiful annual pass instead, because two vehicle entries plus anything else gets you close.

Every vehicle must carry tire chains inside the park from 1 November to 1 May. Not chains on the tyres, chains in the boot, regardless of what you are driving or how clear the sky is. This is the rule Adam and I sailed past in 2008 without understanding it, on a road where the snow banks were taller than the car. Rental cars do not come with chains. You buy or hire them before you drive up.

Roads here close, and not only for snow. Paradise is the year round side, reached through the Nisqually entrance via Longmire, though even that stretch can shut at any time in bad weather. Sunrise is seasonal and much later to open. As I write this in August 2026, Sunrise Road and the White River road are both closed because of the Grand Park 2 Fire. Fire closures are now a normal part of a Washington summer and they change week to week, so check road status the morning you drive.

Late July into August is the window, and it is narrow. Paradise sits high enough that snow lingers into summer. Come in June expecting alpine meadows and you will find snowfields. The wildflower bloom is worth building the trip around, and it is also the busiest fortnight of the year, so arrive before nine or after three.

Good news that almost nobody has written up for international families. From 1 January 2026 international visitors aged 16 and over pay an extra 100 dollars per person at eleven named national parks, on top of the normal entrance fee, and the non resident annual pass went from 80 dollars to 250 while US residents still pay 80. Photo ID is checked at the gate. Not one of those eleven parks is in Washington. Rainier, Olympic and North Cascades all sit outside that list, and both Rainier and Olympic still publish the ordinary 30 dollar vehicle fee with no surcharge attached. For a family flying in from abroad that is a meaningful saving against a Yellowstone or Grand Canyon itinerary.

Children and youth under the age of 19 travel free. That is not a typo and it is unusually generous. For a family of five with three children, only the two adults pay a passenger fare. Youth still need a free ticket at terminals with turnstiles, and those free youth tickets are valid for six hours, so collect them at the booth rather than assuming you can walk straight through.

Vehicle reservations exist on exactly two routes. Anacortes to the San Juan Islands, and Port Townsend to Coupeville. On everything else it is first come, first served in a queue at the tollbooth. Reservations on those two are recommended rather than required, and in July and August I would treat recommended as required, because the alternative is watching two sailings leave without you.

Be in line at the tollbooth at least 20 minutes before the sailing, or 30 if you hold a reservation. That is the official guidance and it surprises people who assume a reservation means turn up later. It means the opposite. You queue in the car, you show or buy the ticket at the booth, and staff wave you aboard.

Once you are on, get out of the car. You are allowed to leave the vehicle and you should, because the passenger decks are the entire point. Handbrake on, alarm off, then go up top. With children this converts a transfer into the best part of the day. You return to the car when the loudspeaker asks.

A 3 percent card surcharge started on 1 March 2026. State legislation directed the ferry system to recover payment processing costs, so a 3 percent cost recovery surcharge is now added to every ticket bought with a credit or debit card, in person, at a kiosk or online. It also applies to vehicle reservation no show fees. Small, but worth knowing before you feel overcharged at the booth.

I am not quoting you a fare, on purpose. Vehicle fares vary by route, vehicle length and season, and the system publishes them through a live fare calculator rather than a fixed table. A wrong number here would cost you real money at the booth, so check the current fare for your exact route and car length on the WSDOT site before you budget. What I can tell you is the shape: you pay for the car and driver, adult passengers on top, and the three children ride free.

September is the quiet answer. The crowds drop off after the American Labor Day weekend, the weather usually holds for another few weeks, and prices soften. If your children are not yet school age, or you can travel outside the standard holidays, this is the month I would pick.

Winter closes real things, so check before you commit. The North Cascades Highway, State Route 20, closes over the winter across the high section and reopens in spring, with the date announced each year by the state depending on avalanche conditions. Hurricane Ridge drops to a Friday to Sunday plus holiday Monday schedule. Sunrise at Rainier is shut. A winter Washington trip is a lovely thing but it is a different trip, not the same one in the cold.

Leavenworth in December is a genuine event and it books out. The village lights the whole town and it draws people from across the region. If that is the trip you want, book accommodation months ahead, and be honest with yourself about driving a mountain pass in winter to get there.

The Washington State International Kite Festival runs 17 to 23 August at Long Beach. If you are anywhere near the southwest coast that week it is worth the detour, and it is the sort of thing children remember more than a museum. Book a room early, because the peninsula is small.

Seattle CityPASS, worked out for a family of five. It is 139 dollars for an adult aged 13 and over and 119 dollars for a child aged 5 to 12, valid across a 9 day window, covering the Space Needle and the Seattle Aquarium plus your choice of three from Chihuly Garden and Glass, an Argosy harbour cruise, the Museum of Pop Culture, Woodland Park Zoo and Pacific Science Center. For our family, with Gavin now 13 and pricing as an adult, that is three adults and two children, so 655 dollars. Bought separately those same five attractions come to 264.37 per adult and 213.03 per child, which is 1,219.17. The pass saves us 564.17. It only works if you would genuinely do four or five of them, so count honestly before you buy.

State parks need a Discover Pass, and it is separate from everything federal. Deception Pass, Cape Disappointment and the rest are state parks, not national parks, so a national park pass does not get you in. It is a per vehicle pass sold as a day permit or an annual, and it also covers Department of Natural Resources and Fish and Wildlife land. Buy it before you turn up at a trailhead with no signal.

North Cascades National Park charges no entrance fee at all. None. It sits between two parks charging 30 dollars a vehicle and it is one of the least visited national parks in the country, which is a strange and wonderful combination. Backcountry camping permits are 10 dollars per person with youth 15 and under free, plus a 6 dollar non refundable fee, and developed campgrounds run about 20 to 24 dollars a night.

You need a car, and you should accept that early. Seattle itself works on foot and light rail, and the airport link into downtown is genuinely easy. Everything in this guide outside Seattle needs a vehicle. There is no useful train to Rainier, the Olympic Peninsula or the Cascades.

Fill the tank before the peninsula and before the passes. On the west side of the Olympics and along State Route 20 the gaps between towns are long, stations close early, and mobile signal disappears for stretches. This is the most common way a good day goes wrong here.

Two bases, not five. One week, one base for Seattle and the islands, one base for either Rainier or the peninsula. Every family who tries to add the fourth base ends up spending the week in the car. The distances here look small on a map that does not show mountains.

Short trails are the whole point, and Washington is generous with them. Hall of Mosses at 0.8 miles, the Spruce Nature Trail at 1.2. These are not consolation prizes for families, they run through the best scenery in the park. Do not let anyone talk you into an 18 mile trail because it sounds more serious.

Pack layers and one properly waterproof coat each, even in August. Hurricane Ridge and Paradise are cold when Seattle is warm, and the coast is windy when both are calm. Cotton is the wrong choice. This is the one packing note I would not skip.

Whale watching is the memory, so put it early in the trip. Sightings are not guaranteed, and putting the boat on day two rather than day six leaves room to try again if the weather turns. Operators run out of Friday Harbor and Anacortes through the summer.

Facilities in the parks are thinner than families expect. The Hurricane Ridge day lodge burned down and has not been replaced. On the Olympic coast and in the Hoh you should assume no food, no shop, and patchy toilets. Carry lunch, water and a spare set of clothes for whoever finds the tide pool.

Use the ferry as the day’s entertainment. Because under 19 rides free and you can leave the car, a crossing is close to free fun with a view. When Adam and I crossed to Port Townsend it was the part of the day I remember clearest, and we were two adults with no plan. With children it is even better value.

Families who like being outside in weather. If your children are happy on a beach in a coat, poking a tide pool in a drizzle, this state is close to perfect and it is far less crowded than the southwest parks.

Anyone who wants national parks without the 2026 international surcharge. Rainier, Olympic and North Cascades are all outside the eleven park list, so an overseas family of five saves several hundred dollars against the equivalent Utah or Wyoming trip.

Mixed age groups. The 0.8 mile loops work for a nine year old and the 18 mile trail works for a thirteen year old, often from the same car park. Seattle gives teenagers a city, and the ferries entertain everyone.

Anyone whose picture of a holiday is swimming. The Pacific here is cold enough to be genuinely unsafe for long, and the beaches are for walking and looking. If your family measures a trip in pool hours, go somewhere else.

Short trips of three or four days. The driving eats a short holiday alive. With four days I would do Seattle and one island and nothing else, and most people booking four days want the whole state.

Anyone who will not carry chains or check road status. Between November and May this state asks something of drivers. If that sounds like a chore rather than part of it, come in August or go elsewhere.

That Washington State and Washington DC are constantly confused, including by booking systems. They are about 2,700 miles apart on opposite coasts. Airport codes catch people out, and so do hotel searches that quietly show the wrong coast. If you meant the monuments and the Smithsonian, that guide is here. If you meant rainforest and volcanoes, you are on the right page. When you book anything, look for SEA for Seattle rather than a DC airport.

That the mountain is not always visible. Rainier is enormous and it hides for days at a time behind cloud. Locals genuinely say the mountain is out when it appears. Do not build a single day around a view, build in two chances.

That a ferry queue is a real queue. Missing a sailing in summer can cost you two hours, and there is no way around it because the water is the road. This is the one part of a Washington itinerary that cannot be made up later.

That crossing the Cascades changes the weather completely. You can leave Seattle in cloud and be in dry heat at Wenatchee two hours later. Adam and I drove that transition in one day in 2008 and it did not feel like the same state.

How it compares to its neighbours. Oregon has a similar coast with fewer people and no ferry system. British Columbia is close enough that families often add Vancouver or Victoria, and that means passports and a border crossing, so decide early. Against California, Washington is greener, cooler, far less crowded and much shorter on guaranteed sunshine. Against Alaska, it is the same landscape logic at a fraction of the cost, which is why so many Alaska cruises leave from Seattle in the first place.

That mobile signal disappears more than they expect. Large parts of the Olympic Peninsula, the North Cascades Highway and the approaches to Rainier have no coverage. Download offline maps before you leave the city. Not a suggestion.