The Manasquan River flows eastward through the park, seasonal canoe rentals are offered offsite by private vendors.

[3] The park's signature feature is the Allaire Village, originally named Howell Works in the early 19th century.

[4] The historic village is run by a non-profit organization independent of the park and charges a nominal fee to enter the buildings.

[8] The Allaire State Park family campground provides flush toilets, shower facilities, and a seasonal trailer sanitary dump station.

An easy-to-moderate multi-use trail spanning 2.2 miles (3.5 km) most of which is in the location of former Freehold and Jamesburg Agricultural Railroad tracks.

A multi-use, paved section of the proposed Capital to the Coast Trail is located in Allaire state park spanning 2 miles (3.2 km) within the park, and spanning a distance of 7.1 miles (11.4 km) from the trailhead to the segment end in to Manasquan as the Edgar Felix Bikeway.

Allaire's mountain biking trails may be accessed by riding the Edgar Felix Bikeway to Hospital road on the eastern edge of the park.