Is there a fee to enter the park? Or a parking fee?

For me last sunday was $5 per car and $5 a head for the tour.

Most of the time the booth is closed and it's free. Keep a 5 on ya just in case. 10 if you have a dog.

I went on a Saturday and there was no fee

Not on the weekends

Small fee for both

If the booth is unattended, it is free. It is unattended more often than not, in my experience.

I didn't pay when I was there on a late Sunday...maybe it was Saturday around 4pm

5$ Cash only. But usually free during off-season and during the week.

$5 during the weekend. It's usually free during the week. However, if you go to Contra Loma in Antioch, you can park there for free all the time and walk into Black Diamond.

Have 5 with you in case

$5.00. But alot of the time its free depends on if anyones collecting the fee.

It's $5

$5 fee