Would this be a good place to have an event for my employees?? Is there an open grill and a shaded area in case it rains? Also is there a area to play games with them? Is there restrooms?

Yes, it is a beautiful park located in front of the beach with all the amenities. I recommend it for a good day outdoors.

IT is ok

Yes depending how you plan and call the city to register and update

Yes

If you have. All of that