Best carpark for motorcycles

Hi, first time at Greenman and we're looking forward to it. My only problem at the moment is knowing the best place for motrorbike parking. We're on two bikes and parking these in a field is not really an option (They from experience will be on their side by the end of the day). Also as we're not camping not sure which is the best carpark to aim for.

Any suggestions? Is there a good road to some propoer tarmac for parking? Any alternative places to park the bikes?

Thanks for any and all info :)