It’s technically called “Park Site on Trinity Street”, but online it’s called “Swingview Park”, for the very simple reason that there are four swings, and they provide a view.
A small but adequate playground for kids around 3 to 6 is in the middle of the park, with garden planters and benches surrounding it.
While a decent use of a sloping space, the park itself is fairly minimal.
There’s a small but adequate playground for toddlers on this side hill, although there are plenty of reports of the rubber bottom turning hot and putrid during a heat wave.
The westernmost of the Wall Street parks, Cambridge offers a long strip of grass with some trees in the middle.