Thanks Knitter - I think I would run out of clean ones before the trip was over if I didn't wash them at some point. I suppose I could buy some more, but DH might not be very happy given the amount of stuff we have had to buy already!
I didn't know about flushable pads though, will def look into that as the pads take much longer to dry than the outers.
We have a barely continent toddler and a baby in nappies. Although dd (now 8 months) has been in washables (inherited from ds1 and 2) since the meconium stopped, she gets paper pants when camping. Our tent is too small for a bag of unwashed nappies to be welcome.
You could all take lessons from my eco-hardcore sister. They went camping by train with a 1yo, took their washable nappies and washed them by hand in the cold tap on our basic remote Pembrokeshire campsite.
Dsis always beats me on the eco front, merely taking your washables to camp if you're going by car or campervan suddenly looks like the profligate planet-waster option.