Camping
Camping is not my style, but if you want to rough it in the "wilds" of Europe, there are plenty of camping facilities throughout Europe.  There are also camper/caravan rentals which I hear they are pretty good, but haven't personally tried it for myself yet.

Suncamp Holidays your virtual travel agency for camping holidays. Looking for a nice camp site or a great camping holiday? You're in good hands with Suncamp holidays! Whether you want to reserve a camping pitch or a fully equipped static caravan, tent, chalet or bungalow, you can do it quickly and easily on this website.

Camping Europe European Federation of Camping site Organizations and Holiday Park Associations (EFCO&HPA) website.

CampingNet A guide to camping in Switzerland

Eurocamp offers more than 200 campsites across Europe.  Each site is unique in it's setting and the facilities it has on offer.  Many sites also offer a choice of accommodation - ranging from modern 6 berth tents to the luxury of the Monaco mobile home.  Use the search below to specify criteria that you feel are essential for the perfect camping holiday.

EuroCampings ACSI campsite search engine for Europe

Europe Camping Guide European campsite list and reviews.

Easy Camping Guide to Italian campsites

ECamp The world camping directory

KarmaBum Café's Eurocamping Camping and budget travel in Europe . . . collection of European campground links.

Kosmos Camping Find campsites in Europe.

Places to buy camping and travel gear