Does the park take debit cards for the entrance fee?

Yes 3 dollars monday thru friday and saturday and sunday 5 dollars

There is no "entrance fee" to enjoy the park , unless you are referring to purchasing rental equipment at the park such as bicicles etc..

Don't believe there is an entrance fee to the park

MAYBE

There is a fee to park inside, many park along the curb to avoid the fee.

Yes

Yes the park takes debit and credit cards not sure about discover and amex but MasterCard and visa for sure

Don't know