43 days in United States Itinerary

Generally considered to be the oldest town established by European Americans in the Black Hills, Custer began as a mining town.

On the 10th (Fri), take in the dramatic natural features at Needles Eye Tunnel. Get ready for a full day of sightseeing on the next day: admire all the interesting features of Mount Rushmore National Memorial, take a peaceful walk through Black Hills National Forest, and then explore the activities along Sylvan Lake.

To see where to stay, reviews, and tourist information, go to the Custer online holiday planner .

Philadelphia to Custer is an approximately 8.5-hour combination of flight and taxi. You can also drive; or take a bus. You'll gain 2 hours traveling from Philadelphia to Custer due to the time zone difference. In May, Custer is little chillier than Philadelphia - with highs of 59°F and lows of 37°F. Finish your sightseeing early on the 12th (Sun) to allow enough time to travel to Salt Lake City.

Utah's capital and most populous city, Salt Lake City boasts a small-town feel, big-city amenities, and plenty of nature on its doorstep.

Visiting Deer Valley Resort and Big Cottonwood Canyon will get you outdoors. Get some historical perspective at Temple Square and The Tabernacle. Venture out of the city with trips to Backcountry Snowmobiling (in Coalville) and Alta Ski Resort (in Alta). Next up on the itinerary: contemplate in the serene atmosphere at Salt Lake Temple.

To see reviews, photos, other places to visit, and tourist information, refer to the Salt Lake City tour planner.

Traveling by combination of taxi and flight from Custer to Salt Lake City takes 5 hours. Alternatively, you can drive; or take a bus. Expect a bit warmer temperatures when traveling from Custer in May; daily highs in Salt Lake City reach 72°F and lows reach 51°F. Finish your sightseeing early on the 15th (Wed) so you can travel to Yellowstone National Park.

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

Take a break from the city and head to Mount Washburn and Hayden Valley. Spend the 18th (Sat) surrounded by wildlife at Grand Teton. Spend the 21st (Tue) exploring nature at Fairy Falls. And it doesn't end there: take in breathtaking views at Grand Canyon of the Yellowstone, identify plant and animal life at Lamar Valley, take in the natural beauty of Old Faithful, and explore the striking landscape of Yellowstone National Park.

To find other places to visit, ratings, photos, and other tourist information, go to the Yellowstone National Park driving holiday site .

Traveling by combination of flight and car from Salt Lake City to Yellowstone National Park takes 3.5 hours. Alternatively, you can drive; or do a combination of flight, shuttle, and car. Traveling from Salt Lake City in May, expect nights in Yellowstone National Park to be colder, around 27°F, while days are little chillier, around 53°F. Wrap up your sightseeing on the 22nd (Wed) to allow time to travel to Seattle.

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.

Step out of the city life by going to Hurricane Ridge and Mount Ellinor. You'll find plenty of places to visit near Seattle: Olympic National Park (Second Beach Trail & Olympic National Park). There's still lots to do: admire the masterpieces at Chihuly Garden and Glass, admire nature's wide array of creatures at Seattle Aquarium, take in the exciting artwork at Glasshouse Studio, and pause for some photo ops at Fremont Troll.

To see other places to visit, ratings, maps, and other tourist information, read Seattle trip maker app .

You can do a combination of car and flight from Yellowstone National Park to Seattle in 5.5 hours. Other options are to do a combination of bus, shuttle, and flight; or drive. The time zone changes from Mountain Standard Time to Pacific Standard Time, which is usually a -1 hour difference. Traveling from Yellowstone National Park in May, expect nights in Seattle to be much warmer, around 52°F, while days are a bit warmer, around 68°F. Finish up your sightseeing early on the 27th (Mon) so you can catch the flight to Friday Harbor.

The tiny town of Friday Harbor is the largest village on the San Juan Islands, and it fits within just 2.6 km (1 sq mi) of space.

On the 28th (Tue), admire the majestic nature at Lime Kiln Point State Park and then find something for the whole family at Zip San Juan. Get ready for a full day of sightseeing on the 29th (Wed): see the interesting displays at The Whale Museum and then get up close to creatures of the deep with a dolphin and whale watching tour.

To find reviews, more things to do, photos, and more tourist information, go to the Friday Harbor holiday app .

You can fly from Seattle to Friday Harbor in an hour. Another option is to ride a ferry. Plan for a bit cooler nights when traveling from Seattle in May since evenings lows in Friday Harbor dip to 45°F. Finish up your sightseeing early on the 29th (Wed) so you can travel to Katmai National Park and Preserve.

The volcanic landscape of Katmai National Park and Preserve is home to thousands of brown bears who spend their summers fattening up on the plentiful salmon that fill the wilderness area's rivers and streams.

Plan my Katmai National Park and Preserve trip by asking Inpirock to come up with tips and suggestions.

Explore your travel options from Friday Harbor to Katmai National Park and Preserve with the Route module. You'll gain 1 hour traveling from Friday Harbor to Katmai National Park and Preserve due to the time zone difference. Expect little chillier temperatures when traveling from Friday Harbor in May; daily highs in Katmai National Park and Preserve reach 55°F and lows reach 38°F. On the 30th (Thu), you're off toFairbanks.

With its strip malls and fast-food restaurants, Fairbanks appears a bit functional on first glance.

Get in touch with nature at Nature & Wildlife Tours and Large Animal Research Station. Next up on the itinerary: go for a walk through Creamer's Field Migratory Waterfowl Refuge, identify plant and animal life at Wedgewood Wildlife Sanctuary, contemplate the long history of Alaskan Pipeline, and find something for the whole family at Pioneer Park.

To find more things to do, reviews, where to stay, and other tourist information, read Fairbanks trip app .

The Route module can help you plan travel from Katmai National Park and Preserve to Fairbanks. When traveling from Katmai National Park and Preserve in May, plan for somewhat warmer days and about the same nights in Fairbanks: temperatures range from 61°F by day to 38°F at night. Finish your sightseeing early on the 3rd (Mon) so you can travel to Newport.

A town that survives on the sea, Newport's population of just over 10,000 supports a healthy commercial fishing industry.

Start off your visit on the 4th (Tue): see majestic marine mammals with a dolphin and whale watching tour, then enjoy the sea views from Yaquina Head Lighthouse, and then identify plant and animal life at Yaquina Head Outstanding Natural Area.

To find traveler tips, maps, photos, and tourist information, use the Newport trip planner .

You can do a combination of flight and bus from Fairbanks to Newport in 12.5 hours. Alternatively, you can drive; or do a combination of train, ferry, and bus. The time zone difference moving from Alaska Standard Time (AKST) to Pacific Standard Time (PST) is 1 hour. While traveling from Fairbanks, expect slightly colder days and about the same nights in Newport, ranging from highs of 61°F to lows of 48°F. Wrap up your sightseeing on the 4th (Tue) early enough 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.

Popular historic sites such as Timberline Lodge and Ski Area and Fort Clatsop National Memorial are in your itinerary. Escape the urban bustle at Ecola State Park and Multnomah Falls. Take a break from Portland with a short trip to Multnomah Falls in Bridal Veil, about 46 minutes away. The adventure continues: explore the activities along Columbia River Gorge National Scenic Area and steep yourself in history at Pittock Mansion.

Planning Portland trip won't be overwheling when you use's Insprock itinerary maker.

You can drive from Newport to Portland in 3 hours. Another option is to take a bus. Plan for somewhat warmer temperatures traveling from Newport in June, with highs in Portland at 77°F and lows at 56°F. Wrap up your sightseeing on the 8th (Sat) early enough to travel to Yosemite National Park.

Massive granite mountains, towering waterfalls, groves of Giant Sequoia trees, and wilderness as far as the eye can see distinguish the landscape of Yosemite National Park.

Visiting Glacier Point and Elizabeth Lake, Yosemite National Park will get you outdoors. Spend the 12th (Wed) exploring nature at Bridalveil Fall. There's much more to do: admire the sheer force of Vernal Fall, grab your bike and head to Yosemite Valley Biking, take in the dramatic natural features at Taft Point, and stroll through May Lake Trailhead.

For ratings, reviews, other places to visit, and tourist information, use the Yosemite National Park travel planner .

Traveling by combination of flight and bus from Portland to Yosemite National Park takes 8 hours. Alternatively, you can take a bus; or do a combination of train and bus. Traveling from Portland in June, expect little chillier with lows of 43°F in Yosemite National Park. Finish up your sightseeing early on the 15th (Sat) so you can go by car to Las Vegas.

Nicknamed the "Entertainment Capital of the World," Las Vegas sits in the middle of a desert in the southern section of Nevada.

Get outdoors at Red Rock Canyon National Conservation Area and Hoover Dam Bypass. Venture out of the city with trips to Valley of Fire State Park (in Overton) and Hoover Dam (in Boulder City). There's lots more to do: get a taste of the local shopping with The Strip, examine the collection at The Mob Museum, take in panoramic vistas at Eiffel Tower Viewing Deck, and push the limits with an extreme tour.

To find ratings, maps, where to stay, and tourist information, go to the Las Vegas travel planning tool .

Drive from Yosemite National Park to Las Vegas in 9 hours. Traveling from Yosemite National Park in June, things will get much warmer in Las Vegas: highs are around 103°F and lows about 77°F. Wrap up your sightseeing by early afternoon on the 21st (Fri) to allow enough time to travel back home.