We use the washing up bowl or a small paddling pool, The paddling pool doubles up as our shower tray when we use our solar shower if we are on a site with no facilities or have gone wild (oh the days when THAT meant somethng completly different!).
Little Dude gets mucky as hell but a quick dunk in the pool or a rub down with the flannel and he looks fairly presentable again.
------------- "Is it supposed to make that noise?"
The C&CC Kingsbury Water Park site had a family room with a plastic baby bath in. This is the first time I have seen one though so not all sites with family rooms have them.
I use Johnson's Soft wash cloths (I think thats what they are called) I got them from Sainsburys. Just wet them with a little warm water and they lather up. Like others above suggest, I don't stress too much about bathing. I just make sure hands and face are clean and the other bits get done every few days.
I take a washing up bowl and put it on a towel in the tent. They can just about sit in it or stand ( the eldest is 5). The same bowl carries the dirty pots to the washing up sink.We just make sure it's clean before the girls wash in it.
I used our washing up bowl, it was a little small, but it did the job. She didn't half look cute......I'm gonna get a larger stroage box as suggested in other replies.
you can buy inflateable baths have sen them in mothercare, also a lovely site in shropshire called lower lacon has a bathroom with proper bath- excellent idea!!
------------- i might be brave and tow the caravan one day!!!
I used a large plastic box, the type you sometimes get with bulk purchase of nappies. They are great to pake things in for traveling, then when you get to where your going use as a little bath in the shower block or in your awning/tent.