I am thinking of going round europe next year with my ds's, (aged 15,11,and 9 by then), backpacking from hostel to hostel. I have never been backpacking before, but I fancy spain,france,germany and maybe a bit of scandinavia, before dh will join us for the journey home. I am going to go with a friend and her 2 dds. Am I mad? Has anyone done it, and how do I go about it? Do i have to pre-book hostels? How many per room in a hostel?