The thing I love about this is that it doesn't even need to apply to the physical. Yes, my thing could be completing a marathon or climbing a mountain, but it could also be changing my major or moving across the world. I could make them all gasp, one day.
A guerrilla wedding is basically an impromptu ceremony where you, your fiancé, an officiant, and few guests (and a photographer, if you`d like) literally just show up, unannounced, to whatever location you choose to say your “I Do`s”. It has become a modern-day version of eloping.