Should I buy the camping card? Where do I do that?

The camping card can be a good solution for people who plan on staying at certain campsites during their trip. However, note that the camping card only gives access to certain campsites around the country.

See their website Camping Cards for more information about participating campsites and purchase options. It will cost a small fee to stay at any campsite in Iceland, but whether you should buy the camping card or not really depends on your preferred route and schedule around the country.