Is the parking and fee to enter free for the whole day on 7th October?

No. It's totally cashless, so you need debit/credit card to pay 10$ daily fee or 50$ for annual family pass if your a Florida resident. Never a parking fee and it's a walkthrough park. No rides there.

Parking is always free not sure if there waving fee for entry

Is the parking free

First Mondays free admission. In 2020, it's Sept 7, Oct 5, Nov 2, Dec 7. Don't know if First Mondays free after that.

Parking is free rides cost a lot of money