We saw many large 5th wheels parked here during our stay. As others have recommended, you need to talk with their excellent staff to ensure you end up in a site big enough for your rig and your tow vehicle. We have T-Mobile, Verizon, and AT&T - AT&T usually was the best, but none of them were consistently great. We have a cell booster that helped a lot.Besides the ocean views, the hiking trails around the park are some of the best we've found....