Question for Tourist Information Office

Hi My wife and I are touring your area to coincide with the Rory Gallagher festival in a motorhome. Unfortunatly I left booking the Lakeside campsite too late and now its full. Are there any farms or community areas within walking distance of the town doing pop up campsites for this event. Our van is self contained so we do not need any facilities just a parking space on a firm pitch as its a heavyish van. Thank you Look forward to hearing from you. Clive Worrall