23 days in United States Itinerary

Nicknamed the "Emerald City" because of its abundant evergreen trees, Seattle is the cultural and business center of the Pacific Northwest, as well as a popular holiday destination.

Kick off your visit on the 3rd (Thu): wander the streets of Pike Place Market, take in panoramic vistas at Space Needle, then admire the masterpieces at Chihuly Garden and Glass, and finally get a new perspective on things with Boat Tours & Water Sports. Keep things going the next day: take a leisurely stroll along Hiram M. Chittenden Locks, sample the fine beverages at Copperworks Distilling, then examine the collection at The Museum of Flight, and finally meet the residents at Seattle Aquarium.

To find ratings, traveler tips, reviews, and more tourist information, read our Seattle online sightseeing planner.

If you are flying in from The Netherlands, the closest major aiports are Seattle Tacoma International Airport, Boeing Field King County International Airport, McChord Air Force Base and Jefferson County International Airport. In August in Seattle, expect temperatures between 31°C during the day and 19°C at night. Finish your sightseeing early on the 4th (Fri) to allow enough time to fly to Glacier National Park.

The glaciers from which Glacier National Park takes its name mostly dissipated eons ago, but they left behind a scoured landscape of high and steep mountain peaks, sparkling lakes, lush alpine meadows, and thick forests.

On the 6th (Sun), hike the day away at Highline Trail. There's lots more to do: cruise along Going-to-the-Sun Road, explore the activities along Lake McDonald, get great views at Jackson Glacier Overlook, and hike along Iceberg Lake Trail.

For where to stay, other places to visit, ratings, and other tourist information, go to the Glacier National Park trip itinerary planning site.

Fly from Seattle to Glacier National Park in 3 hours. Alternatively, you can drive. Traveling from Seattle to Glacier National Park, you'll lose 1 hour due to the time zone difference. Traveling from Seattle in August, you can expect nighttime temperatures to be little chillier in Glacier National Park, with lows of 10°C. Finish up your sightseeing early on the 7th (Mon) so you can catch the flight to Yellowstone National Park.

An exceptionally diverse landscape and varied wildlife have made Yellowstone National Park one of America's most popular parks.

Yellowstone National Park is known for nature, wildlife, and sightseeing. Your trip includes some of its best attractions: take in breathtaking views at Grand Canyon of the Yellowstone, take in the natural beauty of Upper Geyser Basin, look for all kinds of wild species at Hayden Valley, and get to know the fascinating history of S Rim Trail.

To see ratings, traveler tips, more things to do, and other tourist information, refer to the Yellowstone National Park trip itinerary site.

You can fly from Glacier National Park to Yellowstone National Park in 6.5 hours. Alternatively, you can drive; or do a combination of car, bus, and taxi. In August, Yellowstone National Park is a bit cooler than Glacier National Park - with highs of 24°C and lows of 3°C. Wrap up your sightseeing on the 10th (Thu) early enough to drive to Grand Teton National Park.

The peaks of Grand Teton National Park aren't the highest in the world, but they sit atop what might be nature's archetypes for mountains.

On the 11th (Fri), cruise along 42-mile Scenic Loop Drive, take in the architecture and atmosphere at Chapel of the Sacred Heart, then contemplate the waterfront views at Jackson Lake, and finally cruise along Signal Mountain Summit Road. Here are some ideas for day two: identify plant and animal life at Grand Teton.

To see maps, traveler tips, ratings, and more tourist information, read our Grand Teton National Park planner.

Getting from Yellowstone National Park to Grand Teton National Park by car takes about 1.5 hours. Expect somewhat warmer weather when traveling from Yellowstone National Park in August: highs in Grand Teton National Park hover around 30°C, while lows dip to 7°C. Finish your sightseeing early on the 12th (Sat) so you can drive to Twin Falls.

Twin Falls is the county seat and largest city of Twin Falls County, Idaho, United States. On the 13th (Sun), take in the dramatic scenery at Twin Falls, take in the dramatic scenery at Shoshone Falls, then whizz through the canopy at some of the top local zipline courses and adventure parks, and finally stroll around Centennial Waterfront Park. On your second day here, snap pictures at Perrine Bridge and then trek along Snake River Canyon Trail.

To see maps, ratings, traveler tips, and other tourist information, you can read our Twin Falls trip maker app.

Traveling by car from Grand Teton National Park to Twin Falls takes 5.5 hours. Alternatively, you can do a combination of car and bus; or do a combination of taxi, bus, and flight. Prepare for somewhat warmer weather when traveling from Grand Teton National Park in August: high temperatures in Twin Falls hover around 36°C and lows are around 17°C. Finish your sightseeing early on the 14th (Mon) to allow enough time to drive to Boise.

From its main thoroughfare, Boise greets visitors with a view of downtown framed by the foothills of the Rocky Mountains.

To see other places to visit, photos, more things to do, and more tourist information, read our Boise online itinerary maker.

Traveling by car from Twin Falls to Boise takes 2 hours. Alternatively, you can take a bus. In August in Boise, expect temperatures between 38°C during the day and 20°C at night. Finish up your sightseeing early on the 16th (Wed) so you can travel to Crater Lake National Park.

Reaching a depth of 592 m (1,943 ft), Crater Lake is the deepest lake in the United States.

Spend the 17th (Thu) exploring nature at Crater Lake National Park. And it doesn't end there: tour the pleasant surroundings at Cleetwood Cove Trail, admire the sheer force of Vidae Falls, trek along Pinnacles Overlook Hike, and look for all kinds of wild species at Rogue River Gorge Viewpoint.

For photos, more things to do, ratings, and more tourist information, you can read our Crater Lake National Park online itinerary builder.

Traveling by combination of taxi and bus from Boise to Crater Lake National Park takes 8.5 hours. Alternatively, you can drive; or do a combination of flight, bus, and taxi. Traveling from Boise to Crater Lake National Park, you'll gain 1 hour due to the time zone difference. Expect a daytime high around 39°C in August, and nighttime lows around 18°C. Wrap up your sightseeing on the 18th (Fri) to allow time to drive to Portland.

A big city with a small-town feel, Portland is home to the country's biggest rose test garden, perched on a hill overlooking downtown.

On the 19th (Sat), admire the striking features of Pittock Mansion, admire the natural beauty at International Rose Test Garden, then admire the natural beauty at Portland Japanese Garden, then admire the natural beauty at Lan Su Chinese Garden, and finally look for gifts at Powell's City of Books.

For photos, traveler tips, maps, and more tourist information, go to the Portland attractions planner.

You can drive from Crater Lake National Park to Portland in 4 hours. Other options are to drive; or do a combination of taxi, bus, and flight; or do a combination of taxi and train. Expect slightly colder weather when traveling from Crater Lake National Park in August: highs in Portland hover around 34°C, while lows dip to 18°C. Cap off your sightseeing on the 20th (Sun) early enough to catch the flight to Mount Rainier National Park.

The star attraction of Mt.

Start off your visit on the 20th (Sun): take your sightseeing to a higher altitude at Mount Rainier, hike along Skyline Trail, and then take your sightseeing to a higher altitude at Paradise Valley. On the 21st (Mon), you'll have a packed day of sightseeing: admire the sheer force of Narada Falls, take a peaceful walk through Grove of the Patriarchs, and then hike along Paradise Loop.

To find other places to visit, photos, traveler tips, and more tourist information, go to the Mount Rainier National Park road trip tool.

Use the Route module to find suitable travel options from Portland to Mount Rainier National Park. Expect slightly colder temperatures when traveling from Portland in August; daily highs in Mount Rainier National Park reach 31°C and lows reach 14°C. Wrap up your sightseeing on the 22nd (Tue) early enough to travel to Olympic National Park.

In Olympic National Park, ancient rainforests and ocean tidal pools at lower elevations contrast with wildflower-filled alpine meadows and snowcapped peaks.

Take a break from Olympic National Park with a short trip to Quinault Big Spruce Tree in Quinault, about 1h 5 min away. There's much more to do: delve into the lush surroundings at Olympic National Park, stroll through Ruby Beach, contemplate the waterfront views at Lake Crescent, and trek along Sol Duc Falls.

To find where to stay, more things to do, reviews, and more tourist information, refer to the Olympic National Park online trip itinerary planner.

The Route module can help you plan travel from Mount Rainier National Park to Olympic National Park. Traveling from Mount Rainier National Park in August, expect nights in Olympic National Park to be about the same, around 13°C, while days are a bit cooler, around 26°C. You'll set off for home on the 25th (Fri).