Is this park is free entry or should I pay ?

There's a fee per vehicle

It depends on what time in the day you go as well we got in for free the last time and it was on a Thursday afternoon around 3 p.m.

8 dollar 1 car entire family

$2 for my nike and I, almost symbolic.

There is an entry fee per car

There's an entry fee... four dollars per person

There's a fee to pay for the day