Not a very functional park, but provides a little more green space (aka Canadian Goose food) to chill either on the grass or on the benches. You can get to this from the Charles River path, Cambridge side or, as Richard S. mentioned, from Land Boulevard.
Actually, it's quite a bitch to get to, especially from the crosswalk at the intersection of Binney and Land Boulevard. Technically, even when the walk like is operating correctly, you still might get smashed by drivers screaming around the corner from Land to Binney. The best way to cross Land Boulevard is on the side that doesn't have the cross walk. Wait until traffic light for Binney St drivers who are turning left ONLY onto Land Boulevard is green, then walk freely across. read more