Welcome to iRV2.com

I only have one golden so, I've never really looked into whether or not there are dog limits. you might find that there are some campgrounds that don't allow any dogs at all and some that limit you to 1 or 2. As far as campgrounds in NH, there are quite a few to choose from depending on what you need in a campground. With 5 dogs, you might appreciate the size of the sites at Meredith Woods in Meredith. Also, Newfound RV Park has long, pull through sites that might make things easier for you when you are getting used to the new fiver.
Harbor Hill Camp had more than it's fair share of goldens when we were there last summer. It almost seemed like a convention there were so many!!!
To make the reservations, I usually check out the campground's website and see what sites appeal to me and then give them a call. summer weekends are harder to get what you want but spring and fall are pretty easy.
Consider joining us at the Spring or Fall Rally.