Fort Hill is the highest point in St George, and was controlled by the British during the Revolutionary war. The British built the Duxbury’s Point fortification overlooking the Harbor. Some parts of the original “Fort” wall can be seen near this park and also on the nearby Fort Hill Circle Street.
In January 1780, The British successfully repelled an American assault against the fort. The fort also served as a base of operations in raids launched against American positions in New Jersey. Following the British evacuation of Staten Island in November 1783, the fort was abandoned, with its square base later used as a reservoir.
You can walk all the way around this small park, there is a street with no sidewalk and then a public stairway on the north/west side. But there is no need to walk inside. The cache is accessible from the sidewalk 24/7