Ewok

I'm trying to lose 85 pounds to join the Air Force and I'm getting my first bike since childhood this weekend. I live not far from Cherry Creek State park in Aurora CO and I can access it via trails. I'm wondering if you are required to go pay the entrance fee if you bike in via outter trails? Their website says "All vehicles are required to have an entrance pass and some parks have walk-in fees." Does vehicles include bikes? Otherwise, it says walk in passes are 3$, which would riding in fall under?

I'd appreciate enlightenment on the subject and apologize if I sound ignorant, I'm new to the subject.

Thanks!