Last year we camped without reservation at The Munich- Thalkirchen Camping Site. A shuttle at the campground takes you to the U-Bahn which goes to the "Wiesn", the fairgrounds where the beer tents are located. Check out the website, destination-munich.com/camping-in-munich.html for other camping options. Thalkirchen was loud, busy and fabulous fun! Cheap, too...for two of us, our tent, and car was about 15E.