From NYC take Turnpike south about 25 miles to I-287. Turn north on I-287 and go about 18 miles. Take US 202 southwest 26.5 miles to Route 29 on the east bank of the Delaware. Turn north and drive 5.5 miles to Bull's Island on the left.
Parking is by the headquarters.
This island is part of the Delaware River floodplain, separated from the mainland by the Delaware River and Raritan Canal. Bull's Island is an artificial island, created by the construction of the canal. The stone here is from the Stockton Formation, better known as brownstone and is quarried locally. In the area are a few igneous intrusions of darker traprock, similar to those that formed the Watchungs and Cushetunk Mountain. Richard Bull, one of the original owners, gave his name to the island and also to Bull's Creek, displaced by the canal, which separated it from the mainland.