The park's signature feature is the Allaire Village, originally named Howell Works in the early 19th century. It was a prosperous industrial town producing pig iron and cast iron from the surrounding bog iron deposits. The buildings which remain and have been restored today include a general store, blacksmith shop, carpenter's shop, manager's house, foreman's house and a church. One of the workers' row house buildings has been recreated and now houses a Visitor Center and Museum. The historic village is run by a non-profit organization independent of the park and charges a nominal fee to enter the buildings.
Pine Creek Railroad
The Pine Creek Railroad is an excursion rail line operated by railroad enthusiasts of the New Jersey Museum of Transportation. The museum, an independent not-for-profit organization, moved its locomotives and rolling stock to Allaire State Park in 1962 where it runs weekend trains on a ½ mile loop of track through the park. The physical rail line for the railroad was repurposed from a disused spur of track at a former rug company, 'A&M Karadheusian Rug Company' in Freehold, NJ. The Monmouth County Board of Freeholders sold the track for $1.00 to the museum for use at Allaire State Park. The Pine Creek Railroad, like Allaire Village is an independent private organization operating within the park.
The Nature Interpretive Center currently operates weekends during the summer.
Campground
The Allaire State Park family campground provides flush toilets, shower facilities, and a seasonal trailer sanitary dump station. The campground is open all year. Prices range from $20 a night for a regular tent site, to $30 for a yurt, and $40 for a shelter. There are 45 tent and trailer sites with picnic tables available for guests with their own camping equipment. In addition there are four yurts, and six cabin-like shelters available for rent. There is also a group campground located on the south side of the park, which has an area with six large sites.
While not an official park trail, the bikeway terminates within the developed section at the Pine Creek Railroad parking lot. The trail spans to Manasquan. The Edgar Felix is a rail-trail, and would be considered as easy if rated by the NJ DEP. All trail classifications and distances are made by the New Jersey Department of Environmental Protection, which oversees the State Parks. Note: Bicycles are not permitted on trails within the developed part of the park. Allaire's mountain biking trails may be accessed by riding the Edgar Felix Bikeway to Hospital road on the eastern edge of the park.