Consider the Camping Card International. You may not have heard of it, but the Camping Card International (CCI) is an extremely useful document if you're planning to camp or caravan anywhere around the globe*. In fact in Denmark it's a legal requirement.
Click here to download the CCI application form.
* The insurance is valid worldwide with the exception of the USA and Canada and territories that fall under the jurisdiction of these countries. The insurance is valid from the date of issue or extension up to and including the 31st December of that same year.