Leap day addon

Leap day occurs only once every four years, on February 29th. Because of the rarity of this date, several badges have the leapday addon to reflect this. The affected badges and requirements are as follows:

• The Achiever: Find at least one challenge cache on Leap day.
• The Adventurous Cacher: Find at least one 5/5 cache on a Leap day.
• The All Around Cacher: Fill all 360 sectors with finds on Leap day.
• The Attribute Cacher: Log geocaches with all 108 relevant attributes on Leap day.
• The Brainiac: Find at least one Difficulty 5 Geocache on Leap day.
• The Busy Cacher: Log the amount required for Diamond (400 caches), on a single Leap day.
• The Diverse Cacher: Log the amount of unique Geocache types required for Diamond on a single Leap day
• The Earth Cacher: Log an Earth-cache on Leap day
• The Environmental Cacher: Attend a CITO event on Leap day
• The Event Host: Host any event on Leap day
• The FTF Addict: Log a First to Find on Leap day
• The Giga Social Cacher: Attend a Giga event on Leap day
• The GPS Maze Cacher: Log a GPS Maze event on Leap day
• The High Altitude Cacher: Log a Geocache, on Leap day, at the height of at least 4,500 meters above sea level.
• The Lab Cacher: Log a lab cache on Leap day
• The Large Cacher: Log a Large cache on Leap day
• The Letterboxer: Log a Letterbox cache on Leap day
• The Long-Distance Cacher: Log a Gecache on Leap day, on a distance from home that fulfills the Diamond requirement (10,000 km).
• The Low Altitude Cacher: Log a Geocache, on Leap day, at the depth required by Diamond (100m below sea level).
• The Matrix Cacher: Log all of the 81 unique D/T ratings on Leap days
• The Mega Social Cacher: Attend a Mega event on Leap day
• The Micro Cacher: Log a Micro cache on Leap day
• The Multi Cacher: Log a Multi-cache on Leap day
• The Mysterious Cacher: Log a mystery cache on Leap day
• The Odd-sized Cacher: Log a cache with a size of "other" or "unknown" on Leap day.
• The Photogenic Cacher: Log a Webcam cache on Leap day
• The Regular Cacher: Log a regular cache on Leap day
• The Rugged Cacher: Log a Terrain 5 cache on Leap day
• The Small Cacher: Log a small cache on Leap day
• The Social Cacher: Attend any event on Leap day
• The Traditional Cacher: Log a Traditional cache on Leap day
• The Traveling Cacher: Log a Geocache on leap day in at least two different countries.
• The Virtual Cacher: Log a Virtual cache on Leap day
• The Wherigo Cacher: Log a Wherigo cache on Leap day

Note that all these addons only apply if the user have reached gemstone level on the qualifying badge. Some require the user to meet the diamond level.