We actually camped at Graham Cave State Park in 2004, when we still had our pop up camper, but there is no 2004 available for selection. Graham Cave is a lovely little park. You could possible get a bigger camper trailer in some of the basic non-electric sites. But there is no way to get a larger rig in the electric sites. Our pop-up at the time would barely fit in an electric site and we had to park off to the side. It is right next to I-70, so you have to listen to the whine of tires all night long. The host at the time, well, was interesting. Don't know if he is there anymore. He was very nice when we arrived, but turned on us two days later when we were leaving. He started at noon and pretty much came around every 30 minutes telling us check out time was at 2:00 pm. When he told us upon arriving it was at 3:00 pm and the paper he handed us also said 3:00 pm. We made sure we were out by 2:00 pm. I'm not sure why he was so worried as we were the only campers in the entire campground that weekend. The cave, is sort of interesting if you know in advance it's mostly just a rock overhang. It's not a cave in my opinion, since I've been in probably 50 caves. The surroundings were nice though with some interpretive markings along the trails. It's too bad we can't submit images, as I have some nice images of the nature in this park, just not of the cave, since I was disappointed in the cave. We camped here in a Tent Trailer.