Merriam-Webster
leap year noun
1 : a year in the Gregorian calendar containing 366 days with February 29 as the extra day
Geocacher's Dictionary
leap year noun
1 : an additional day for another geocaching adventure and to increase the numbers for the year
2 : an additional day to schedule a special geocaching event
WHAT: Leap Day Event to Meet, Greet, Eat, and Gab with Cachers
WHERE: Fuddruckers, 7511 FM 1960 West, Houston, TX 77070
WHEN: Monday, February 29, 2016, 6:00 pm - 8:30 pm
WHY: To talk about GPSr's, share some tricks and tips, swap some stories, trade/swap/discover TBs, Geocoins & Pathtags, and have some fun!!
BYO$ …. Food and Drinks available
If you’ve never attended an event before you will get this nifty event icon in your geocaching profile: 
The first thing you need to do is "Log Your Visit" and choose "Will Attend." This way we'll know how many cachers plan on coming. Once you attend the event and go home to log it, choose the "Attended" log, write something up, and that's it!