Mountain Unicycling, abbreviated as MUNI... Mountain Unicycling (MUni)
WINNAH! WE HAVE A WINNAH LADIES AND GERMS!
That is hardcore and awesome, LOVE IT.
I run half marathons (I have run one full as well) - my wife and I both run them. I just last weekend accomplished a major personal running/racing goal - I finished in 1 hour 59 minutes. I've been trying for six years to get there!
I also have a freshwater planted aquarium. I run compressed CO2 from a 5lb tank, have 192 watts of compact florescent lights over it, and use fertilizer.
I also recently got an RC airplane (two now actually!) and am having fun with those. I have the Hobbyzone Champ (a small foam electric trainer aircraft) which I bought a small LED light kit for, and I fly it day or night! I also recently bought a Parkzone Ultra Micro T-28, my first aileron plane! Good stuff.
I also study Cold War history and especially CW-era aircraft. I love the old Cold War jets!
Also: roadracing, astronomy, photography, ancient Native American rock art, camping, mountain biking, hiking, swimming, etc. ... being outdoors