Great mtn biking area; Beware of out-of-state surcharge and filthy bathrooms
The Good - this campground is a great basecamp for accessing the mountain bike trails available within the park. Sweet free ride areas, pump track, and trail network. Would definitely return for that access. Also super easy to access Boston via the Red Train at Braintree station ~20mins away. A fantastic Italian restaurant (The Venetian) in Weymouth is about ~15mins away.
The Bad - MA sticks it to the out-of-state visitors charging $54/night relative to only $17/night for MA residents. I paid less staying at a nicer private campground in Brewster on the Cape. (Campground cost details updated to reflect the full cost range for both in and out of state residents. In-state: $17 - $23 ($6 extra for electric site); non-locals: $54-$60 (non-electric and electric). https://www.mass.gov/service-details/camping-fees
The Ugly - Bathrooms were filthy, and the trash cans were overflowing and looked like they hadn’t been emptied for days, even though there weren’t an unusually high number of campers during our two night stay. The individual campsites were so-so.
Bottom line - if it wasn’t for the mtn bike trails and proximity to Boston, suggest staying elsewhere. That’s the reason for two stars and not one.