We did a cross country trip with a teenager, 5 year old, and 18 month old last summer. Our goal was to get from Lincoln CA to Hemingway South Carolina to pick up my wife's father who flew in from Italy to see his son and grandkids. The trip was to show him as much of america as we could in a little over 3 weeks. Total trip there and back was about 7900 miles. We drove from Lincoln CA to Hemingway SC in 4 days driving about 750-800 per day. We didn't reserve any spots on the way, just used various RV aoos to find a local campsite along the route. I would wake up at 6 am while the kids slept, wife made coffee for me. We would stop for breakfast at 9am and I'd fill up. I'd drive until 30 minutes before sunset. Search for an RV park along the freeway. Never had an issue finding a spot for 1 night. Drove about 2800 miles in 4 days from Lincoln CA to Hemingway SC and it wasn't an issue. Again our goal was to spend time with my wife's father since he lives in Italy he can only see his kids and grand kids every 3-5 years or on Skype. I posted here about our trip. Just like someone else said is the trip to spend time with family, vacation, or a little of both? Since your family is in PA why not take them to the Hershey amusement park. The have an RV park there and I think the have cabin you can rent for the grand parents. Free shuttle service from the RV park to the Hershey park.
Bottom line is that I had never driven that much and in the RV with pit stops it wasn't an issue. I setup a small PC with lots of movies and TV shows for the kids. We did stop at a few places on the way to SC but overall it was fine. Teenager was board but she didn't have someone to pall around with and teenagers are a pain anyway :-)
From our trip report
We added a few extra stops along the way as we had time. I added links to the camp sites we stayed at just in case anyone is interested.
Pictures and videos posted here. All are from my camera, still need to upload from my wife’s
2015 Cross County RV vacation - Dias Family
Started from Lincoln Ca
Hemingway South Carolina to visit my wife’s Brother and his family. We also picked up my Father-in-law who flew into SC from Italy
oStayed a day to visit and rest. We made it from Lincoln California to Hemingway SC in 4 days. Very aggressive driving
Virginia Beach – Father-in-law wanted to visit a few friends there
Washington DC – Checked out a number of the Smithsonian museums and local sites
oWe stayed at a great RV park called*Cherry Hill Park
oCity bus came right to the park and took you to the metro line. You could also sign up for 1 day and 2 day tours. We decided to do our own thing and walk around
Gettysburg Pennsylvania – had time so we went and checked out the Gettysburg museum
Hershey Pennsylvania – Couldn’t miss checking out the Hershey chocolate factory and spent a few days at the amusement park
oStayed at the*Hersheypark Camping Resort
oThey had a free shuttle to the Amusement park. Very nice park, we had a spot along a creek and could hear the water at night. Little ray played in the water
Niagara Falls – we went to the Canadian side and took a few tours
oWe stayed at*Yogi Bear’s Jellystone Park in Niagara Falls, Ontario
oLots of things for the kids to do and they had an inexpensive shuttle to the falls
Graceland, Nashville Tennessee – had some time so we checked out Elvis’s museum and Mansion
oWe just passed through but saw an RV park right next to Graceland
Krum Texas – stayed at my brother’s ranch. Kids had fun playing with all their cousins and riding horses
Grand Canyon Arizona – Pictures do not do the depth of the place at all. You get a little woozy looking over the edge
oWe stayed at the*GRAND CANYON RAILWAY RV PARK
oWe took the train ride into the Grand Canyon. At 2 hrs and 15 minutes it was a little long for the little ones and you only had 3 hours to walk around. We only saw the south rim areas and would have gone to the north side if we had a car.
Las Vegas Nevada – Took a day and walked around Vegas at night. Can’t beat the light show
oStayed at the*Circus Circus RV park
oBasically a parking lot with RV hookups but it was right next to the casino and not too far from the monorail
South Lake Tahoe California – We stayed near the lake to watch the 4th of July fireworks.
oWe stayed at*Camp Richardson Hotel & Resort
oA little rough getting in and out but not too bad. The beach wasn’t too far of a walk across the road.
Back home late afternoon- unpacked, and put the RV to rest