Golden Skate in San Ramon
They also have a nice large snack area with lots of seats for anyone not skating, or for skaters to rest and snack. A dozen or so video games and ticket games are also available with the usual little plastic prizes for tickets.
The cost seems to depend on the session you want to attend, with most sessions lasting around 2 hours. They are only open for roller skating on Fridays thru Sundays, with an adult skating session on Wendsday nights. You can visit their website to see their calender of upcoming skating sessions and prices.
My kids has so much fun, they have been asking to go roller skating again ever since. So I hope to have other roller skating rinks to review for you soon.