29 days in United States Itinerary

Start off your visit on the 21st (Fri): kick back and relax at Sombrero Beach and then see what you can catch with a fishing tour. On the 22nd (Sat), you'll have a packed day of sightseeing: look for all kinds of wild species at Dolphin Research Center, identify plant and animal life at Sombrero Reef, and then look for all kinds of wild species at The Turtle Hospital.

To see traveler tips, photos, reviews, and more tourist information, read our Marathon trip app.

Paris, France to Marathon is an approximately 14.5-hour combination of flight and shuttle. You'll gain 6 hours traveling from Paris to Marathon due to the time zone difference. When traveling from Paris in July, plan for a bit warmer days in Marathon, with highs around 39°C, while nights are much warmer with lows around 32°C. Finish up your sightseeing early on the 22nd (Sat) so you can go by car to Key Largo.

Start off your visit on the 23rd (Sun): admire the majestic nature at John Pennekamp Coral Reef State Park, look for all kinds of wild species at Florida Keys Wild Bird Rehabilitation Center, and then see what you can catch with a fishing tour.

To see maps, where to stay, ratings, and other tourist information, read our Key Largo road trip app.

You can drive from Marathon to Key Largo in 1.5 hours. Alternatively, you can take a bus. Plan for a bit cooler nights when traveling from Marathon in July since evenings lows in Key Largo dip to 28°C. Wrap up your sightseeing on the 23rd (Sun) to allow time to fly to Hilton Head.

On the 24th (Mon), identify plant and animal life at Sea Pines Forest Preserve, kick back and relax at Coligny Beach, and then stroll through Hilton Head Island Bike Trails. Get ready for a full day of sightseeing on the next day: examine the collection at Coastal Discovery Museum, then race across the water with a speed boat tour, and then indulge in some personalized pampering at some of the best spas.

For traveler tips, ratings, reviews, and more tourist information, read Hilton Head driving holiday planner.

Traveling by flight from Key Largo to Hilton Head takes 3.5 hours. Alternatively, you can drive; or do a combination of bus, train, and taxi. In July, daily temperatures in Hilton Head can reach 37°C, while at night they dip to 28°C. Finish your sightseeing early on the 25th (Tue) so you can fly to Pigeon Forge.

Family-friendly places like Clingmans Dome and Smoky Mountain Alpine Coaster will thrill your kids. Take a break from the city and head to Tuckaleechee Caverns and Roaring Fork Motor Nature Trail. Go for a jaunt from Pigeon Forge to Bryson City to see River Rafting & Tubing about 1h 40 min away. There's still lots to do: take in the awesome beauty at Mount LeConte, whizz through the canopy at some of the top local zipline courses and adventure parks, take in nature's colorful creations at Parrot Mountain & Gardens, and identify plant and animal life at Roaring Fork.

To see traveler tips, photos, reviews, and other tourist information, you can read our Pigeon Forge online tour itinerary planner.

Traveling by flight from Hilton Head to Pigeon Forge takes 5.5 hours. Alternatively, you can drive; or do a combination of bus and car. Traveling from Hilton Head in July, Pigeon Forge is slightly colder at night with lows of 24°C. Finish your sightseeing early on the 28th (Fri) so you can fly to Custer.

Kick off your visit on the 29th (Sat): admire all the interesting features of Iron Mountain Road, then admire the majestic nature at Custer State Park, then take in the dramatic natural features at Needles Eye Tunnel, and finally contemplate the waterfront views at Sylvan Lake. Get ready for a full day of sightseeing on the next day: engage your brain at The Mammoth Site of Hot Springs and then admire all the interesting features of Wildlife Loop Road.

For other places to visit, where to stay, more things to do, and more tourist information, go to the Custer travel route website.

Fly from Pigeon Forge to Custer in 7.5 hours. Alternatively, you can drive; or do a combination of car, bus, and taxi. The time zone difference moving from Eastern Standard Time to Mountain Standard Time is minus 2 hours. Prepare for little chillier weather when traveling from Pigeon Forge in July: high temperatures in Custer hover around 31°C and lows are around 13°C. Finish up your sightseeing early on the 30th (Sun) so you can catch the flight to Yellowstone National Park.

Explore hidden gems such as Grand Canyon of the Yellowstone and Old Faithful. You'll visit kid-friendly attractions like Grand Prismatic Spring and Firehole Canyon Drive. And it doesn't end there: take in the awesome beauty at Elephant Back Mountain, appreciate the extensive heritage of S Rim Trail, explore the activities along Morning Glory Pool, and trek along Storm Point Trail.

To see traveler tips, maps, ratings, and more tourist information, read Yellowstone National Park driving holiday planning tool.

Getting from Custer to Yellowstone National Park by flight takes about 6 hours. Other options: drive; or do a combination of taxi and bus. Traveling from Custer in July, things will get little chillier in Yellowstone National Park: highs are around 26°C and lows about 4°C. Finish your sightseeing early on the 4th (Fri) so you can fly to Glacier National Park.

Kick off your visit on the 5th (Sat): admire the sheer force of Virginia Falls, then cruise along Going-to-the-Sun Road, and then appreciate the views at Logan Pass. Get ready for a full day of sightseeing on the 6th (Sun): trek along Iceberg Lake Trail and then tour the pleasant surroundings at Swiftcurrent Falls.

For more things to do and other tourist information, use the Glacier National Park road trip tool.

Getting from Yellowstone National Park to Glacier National Park by flight takes about 6.5 hours. Other options: drive; or do a combination of taxi, bus, and car. In August, Glacier National Park is somewhat warmer than Yellowstone National Park - with highs of 33°C and lows of 10°C. Finish your sightseeing early on the 6th (Sun) so you can fly to Lahaina.

Relax by the water at Napili Beach and Ho'okipa Beach Park. Get outdoors at Zipline and Wailea Beach. Explore Lahaina's surroundings by going to Kihei (Scuba & Snorkeling & Kamaole Beach Park III) and Haleakala Crater (in Haleakala National Park). There's much more to do: enjoy the sand and surf at Kapalua Beach, visit Lahaina Front Street, walk around Lahaina Banyan Court, and get up close and personal with brilliant marine life at Maui Ocean Center.

Ask Klarna Trips to suggest an itinerary and make planning a trip to Lahaina fast, fun, and easy.

Traveling by flight from Glacier National Park to Lahaina takes 10.5 hours. The time zone difference moving from Mountain Standard Time (MST) to Hawaii-Aleutian Standard Time (HST) is minus 3 hours. Traveling from Glacier National Park in August, plan for much warmer nights in Lahaina, with lows around 27°C. Cap off your sightseeing on the 10th (Thu) early enough to catch the flight to Honolulu.

Start off your visit on the 11th (Fri): see the interesting displays at USS Bowfin Submarine Museum & Park, then don't miss a visit to Battleship Missouri Memorial, then steep yourself in history at Iolani Palace, and finally tour the pleasant surroundings at Koko Crater Railway Trail. Keep things going the next day: contemplate the waterfront views at Waimea Bay, admire the verdant scenery at Waimea Valley, and then meet some fierce fish with a shark diving experience.

For maps, more things to do, and tourist information, go to the Honolulu online itinerary planner.

Traveling by flight from Lahaina to Honolulu takes 2.5 hours. In August, daily temperatures in Honolulu can reach 36°C, while at night they dip to 28°C. Finish your sightseeing early on the 13th (Sun) so you can travel to Yosemite National Park.

Get outdoors at Glacier Point and Mariposa Grove. Kids will enjoy Yosemite, Tunnel View and Bridalveil Fall. And it doesn't end there: explore the striking landscape at Sentinel Dome, cruise along Tioga Pass, explore the activities along Gaylor Lake, and stroll through Pioneer Yosemite History Center.

For where to stay, photos, ratings, and more tourist information, go to the Yosemite National Park trip planner.

Traveling by combination of flight and bus from Honolulu to Yosemite National Park takes 12.5 hours. You'll lose 2 hours traveling from Honolulu to Yosemite National Park due to the time zone difference. Traveling from Honolulu in August, expect nights in Yosemite National Park to be cooler, around 7°C, while days are slightly colder, around 32°C. Cap off your sightseeing on the 17th (Thu) early enough to catch the flight back home.