We are off to a small site near Ross on Wye, with nothing more than a field and a couple of portaloos . We went before and loved it, although dd2 (2.5) has a phobia of portaloos and asks to go home when she needs a poo . Luckily there is a pub nearby with facilities which meet her exacting standards!
The only spanner in the works is that dd2 was running a temperature last night so it might all be off. She has perked up now but will see how she is in the morning .
Hope you all have fun. I think I have a cocktail shaker somewhere, now that is something I had never thought of taking before - top idea Zanz1bar