Fiat Burnster 2015

I am a project co-ordinator. My husband is retired but worked previously in construction. We have three adult children and own a large lifestyle block just outside of Timaru. We are travelling to UK to see our daughter and hope to travel through Portugal and Spain with her and her brother in a camper. They are 29 and 33. We are hoping to swap our camper for similar one but hopefully can sleep four although we will be using camping grounds so could use cabins for the kids. Ideally we would like to travel in July for 2-3 weeks.