Pretty much all there is to it.

South Park is a long, skinny park that stretches north-south between Second and Third streets in the SoMa neighborhood. It's really small; less than an acre! The park itself doesn't feature much, but South Park Street, which surrounds it, is usually well-traveled during lunchtime by people who work in the area, on their way to visit one of several restaurants and cafes surrounding the park.

Also see Parks for info on other local parks