Camp Ajax is a tent-only campsite loop within Gateway National Recreation Area's Sandy Hook Unit, offering access to Raritan Bay and nearby recreational opportunities including kayaking, paddleboarding, and fishing.

The campground features fire rings, picnic tables, and food storage containers, with flush toilets and running water available, though campers should note there are no showers or electric hookups.

Non-motorized boats can be launched from nearby Beach Area C and Horseshoe Cove, making it a convenient base for paddling enthusiasts, while surf fishing is permitted at designated beaches.