geocaching
The other day somebody hid a geocache a short bike ride from my house at a spot where, I now know, an orienteering-themed fraternal order was founded in 1930. Today I rode out and became the second person to log the cache. And coming home I realised it was my 800th find since I started 8 years ago!
My geocaching stats reveal a hobby that starts as an obsession and mellows out into an on-and-off thing.
Finds no 1-100 took 2 months.
101-200 took 8 months (because of winter).
201-300 took 3 months.
301-400 took 4 months.
401-500 took 7 months.
501-600 took 1 year.
601-700 took c. 2½ years.
701-…