We've stayed here twice. It's a very well maintained rustic campground on the Magalloway river. Some of the best brook trout and landlocked salmon fishing nearby. Great place for canoe or kayak trips. Make sure you are well provisioned before arriving, there are no supplies nearby.
This campground is just north of Errol, NH along the Magalloway River. The sites and facilities are well maintained and quite clean. The owners and staff are quite nice and really do a great job managing the campground. There are nice shaded sites along the river as well as a number of sites in a wide open field. Be sure to ask about the amount of shade (or lack there of) when you make your reservation. While being in the field in a climate controlled RV may not be a big deal, being in the sun from sunrise to sunset can be rough as a tent camper.
Sites have picnic tables, fire rings and are nicely spaced from one another. There is a bath house that is clean and a nice amenity, especially for the reasonable rate of $15/night for tent campers (almost unheard of at many private campgrounds).
You can put your boat in upstream of the campground and paddle to the area or you can drive. We paddled from just upstream and continued on the following day. There are several grassy spots where you can slide your boat onto shore.