>>/39326/
Yeah, it's a conservation park. It was constructed fairly late almost out of vanity - it protected the shore and the port just little bit to the east -, and a decade later they built another fort a bit north from there because as the town developed shipping lanes changes and that site became more advantageous. No fort there today, the area was redeveloped. But this one you posted was preserved in good condition and kept as a park for about 70 years now. Sometimes they make loud noises with the guns for fun.