It's not once in a lifetime, but only once every four years. Maybe this Leap Day you can say that you have found a geocache on every day on the calendar.
All geocachers are welcome at this social event.
There is a special souvenir on geocaching.com for those who attend a geocaching event on Leap Day!
Event is from 3:00 to 5:00 when I have to go to do some testing in Mason City.