Is there restrooms?

Yes nice and clean public restrooms

Several throughout this lovely park

There is a restroom located just as you enter the lake (thru the main entrance) on the right hand side. There are also restrooms located on the back side of the lake (by the boat launch dock). There is also a port-a-potty located at the entrance to the nature trail. Also there are restrooms that are located inside the beach area (where you can pay to swim at the designated beach area). Hope this helps.

Yes. Several throughout the park.

Yes