Is the park open on weekends?

Yes

Yes they are open on weekends I pay 3 dollar's

I think they are charging to park 3 dollars I belive

Yes it is. Im not sure if they are charging their fee yet but if so its either $6 or $8 or if you go later in the day like after 4p then theres noone there to charge a fee and you get in for free.

Yes 3 dollars