Since this March 'came in like a lion' with lots of wind, there should be plenty of windblown trash to pick up. With the strong southerly winds, some of it might have accidently come from the residential area to the south of the park.
You may walk the perimieter of the park on a nice concrete trail, or wander around wherever you please.
Come out if you can, even for 15 minutes. Every little bit of trash picked up makes a difference.
And there may be a new cache to find.