We stayed at 'The Opal Caravan park' and it had a free fossicking area which we visited a couple of times. We found white, blue and purple opals, only tiny bits but we still found them. I found some potch (worthless opal) and so did Marg, BUT Marg found an opal nobbie, see photos below. She was that excited that she saw Mark (the park owner) in the office and he thought it was an opal, but to be sure, we drove into see Peter at Peter's Opals in L.R. and he confirmed that it is an opal with a bit of green. So Marg and I are very happy, it isn't worth much dollarwise but we found it. Well, Marg did but we won't split straws.
We also visited the Tourist Centre which had a free fossicking area, found nothing of value.