If it stops raining, go to the beach at Riis Park in Rockaway.
It’s only 20 minutes away from Flatbush, just over the bridge at the end of Flatbush Avenue (past Kings Plaza and Toys R Us.)
The parking lot is FREE because the beach season is over.
95% of the people there now are frum, and aside from the beach there is a nice little park for young kids, and a basketball court for the older ones and their fathers.
A great day for only the $2.75 bridge toll!!!