September Northumberland meet a great idea, and In principle would be fine with a “pop-up” campsite, but have caveats re the three sites:
1] I rarely use official campsites, so maybe I’m out of touch, but with no running drinking water, no showers, a (one only?) compost toilet, £40.00 or £50.00 for two adults / two nights seems a bit steep?
2] No campervan spots available for 3/4 September, yet cars can be driven to pitches. If your car is a campervan, is that OK then ? Needs clarifying.
15 such sites listed for Northumberland on pitchup.com – Brunton Airfield Campsite near Seahouses is much larger, has a x4 loo block, and a shower (for 130 pitches!) £32.00
Russ