QSL.NET is a host dedicated to Ham Radio. And that's my primary hobby.
DL8FA and DK1JU searching the band
One of our traditional activities here in Munich is the annual Field Day.
Knocking on heaven's door
And my favorite mode of operation is CW at lowest possible output power (QRP).
Travelling
Preferably into areas not crowded by mass tourism.
My favorite countries are those between the Rio Grande del Norte and Tierra del Fuego.
Cataratas del Rio Iguazu
Salud! Last but not least:

Getting together with good friends

The photo at the left shows my XYL Gerti at one of our Asados Criollos.