do we have to pay to get in the park?

Yes, you do unless you have the yearly pass, are disabled, or a veteran. Its $6 a car if I remember correctly.

You can get a yearly pass for $30 if you are a county resident or $40 if you out of county resident and you have access to 4 county parks

Yes its $6 cash only.

They ask for a license to fish and what kind of fish is there?

Yes

Yes, there is a small fee to enter the park