[Rockhounds] Crater of Diamonds State Park

[hammerron]

Would anyone have any advice and tell what to expect when collecting at 
the Crater of Diamonds State Park in Arkansas (USA).  A friend of mine 
asked as they are considering a visit. I know nothing.

I see the information on their website but thought people on the list 
who have visited might give a good point on view on what to expect.

regards,

Ron