We are about to embark on our first camping weekend (25th/26th) and it is starting to look like all the bigger sites with toilet blocks are booked up due to silverstone show that weekend. There is a site within 20 miles but has no toilet facilities but has a chemical disposal point. Is it worth getting a chemical porta-potty and if so, where is the cheapest/best place to buy one.
I guess it would come in handy with 2 young kids (7 & 4) plus I am nearly 6 months pregnant!