The Triad is one of the crowning achievements of geocaching. Geocachers must log three specific geocaches: the APE Cache Mission 9: Tunnel of Light, Groundspeak Headquarters and the Original Stash Cache. Each find is rich in geocaching tradition. The geocaches do not need to be logged in any particular order.
The Original Stash Tribute Plaque hides outside of Portland, Oregon. The plaque there commemorates the placement of the first geocache in 2000.
Geocachers must also log The Mission 9: Tunnel of Light Project APE Cache, hidden outside of Seattle, WA. Twelve APE caches were originally placed around the world in 2001 to generate publicity for the remake of the movie Planet of the Apes. Mission 9: Tunnel of Light is one of only two APE caches still active in the world. The other, Mission 4: Southern Bowl is in Brazil.
Geocachers need to also visit the geocache at Groundspeak Headquarters. Groundspeak HQ is also known as the Lily Pad. It is home to the offices of Geocaching.com.
Geocachers who complete The Triad says the accomplishment not only earns them personal satisfaction and but also bragging rights.
Have you ever completed The Triad? Do you have plans to do so?