You can find plenty to do here, including looking around the Chinese Garden littered with vodka bottels walking around the lake or watching a random person piss in a hedge while you picnic on the grass.
One of the wonderful attractions at the park is the boating lake. You can hire a pedalo, or small boat, and spend some time quietly cruising along the vomit polluted water watching life go by.Or watch a random person dive face first into the water and be attacked by rabid geese.
The Abbey Park is a wonderful place to visit if you happen to be in Leicester. Other places that may atrract you are the clocktower and suicide alley.