Parking - Matthiessen Dells parking lots are asphalt with 4 accessible parking spaces. Concrete sidewalks are adjacent to the parking lots. There is a wheelchair ramp to the law enforcement office.
Restrooms - The Matthiessen Dells area has an accessible flush toilet, and the Matthiessen River Area has three accessible vault toilets with concrete pathways leading to them.
Picnicking - The large shelter near the fort is accessible and has a concrete path leading to it from the parking area.
Trails - There is a 1/4-mile trail at the Matthiessen Lake Shelter Area. There is a wooden ramp to the Lake Falls bridge, then a concrete path leading west. The bridge surface is weather-dependent.
Camping - The equestrian campground is open May 1-October 31 and offers one accessible campsite and a rider loading ramp. There are concrete sidewalks to the vault toilets.
Service animals are welcome in the park, and water is available in hydrants at the shelter areas.