If you prefer a bigger park (more like a field) then Shoreditch Park is ideal, only 20 minutes walk from Old Street station up East Road.
On Sunday, we were meeting friends for a leaving do, so out came our bright tartan picnic blanket, mango Rubicon juice boxes (we were hungover), some light nibbles, and sunnies!
We were able to catch the sun's ray well into late afternoon. In the meantime, we caught up with friends, were showered periodically with buds falling from the trees, and made friends with a beetle.
By 6pm, the sun dipped low behind clouds and the wind picked up. With our stomachs grumbling and our bodies shivering, it was time to go home! But what a great way to end the weekend! A highly recommended East London activity.