Probably wirth a try mate if you've already got it, I'm just not sure of how it all works down there, or whether that would cover digging in a park , I know up here it would not help at all, the only thing on side is facts and fastidious performance ,.... facts, we clean up as we go, even surface rubbish is removed (including plastic and glass) ,... and as for performance, well we all get on well and leave no trace behind of having been there at all, and only dig after good rain, any other times or behaviors and they would run you off before blinking twice. :Y: