According to the city code, you are allowed to take a pop-up tent to the beach that is a maximum size of 10ft x 10ft. Whatever you want to put under that tent is your choice.. tables, food, towels, cooler, playpens, etc... However, all items that you bring must not violate any other rules.
You ARE NOT allowed to have the following items on the beach.
We hope that helps answer you question and we hope you and you family and friends have a great birthday party on the beach!
As always.. HAVE A GREAT DAY AT THE BEACH!