Call the range, see if they have someone who can walk you through the rules.
Are you going to rent guns there? Might ask them about that too.
+1 on the .357 revolver, that is going to be my next gun. It can fire .38 special rounds for pop gun fun or .357 magnums if you want to go big.
They won't let you shoot if you do not have eye/ear protection.
Go here, read this:
http://caag.state.ca.us/firearms/forms/pdf/hscsg.pdf