It will be the first 2 weeks of the DDs school holidays, hence the lateness of the trip.
The travel would be 1.5 hours drive to ferry, 6 hours ferry, 1.5 hours drive to campsite from ferry.
Eurocamp style tent with proper beds, large site with loads of activities/clubs/pools for DDs.
We could alternatively stay in the UK, but it will be almost as pricey (which is definitely a consideration) or go on a cheapy Majorca or similar holiday a couple of weeks earlier (meaning DDs would miss school).
Help!