Dan enjoys a variety of GPS-driven games including geocaching and geohashing. See some stats about his adventures.
Geocaching
Geocache logs
Articles tagged “geocaching”, which includes all of the above but also Dan’s blog posts on the subject
OpenCache.uk profile
Geocaching.com profile
Terracaching.com profile
Dan’s geocaches
Current
The following geocaches were all hidden by Dan and can still be “found”, or are parts of series of which at least some parts can be found:
Back To Your Roots (GC24CQ0; traditional cache, hidden February 2010; adopted by DIESEL&WYVERN in May 2021)
(In cooperation with others) both of the Bodleian Libraries’ geocaches in the Oxford Medical History series:
Oxford Medical History #1 – Medical mould (GC54D2Y; hidden May 2014)
Oxford Medical History #2 – Grey matter (GC54KVD; hidden May 2014; archived January 2019)

The Oxford Zoo series, described in this blog post, and consisting of:
Oxford’s Long-Lost Zoo (GC7Q96B / OK0456; traditional cache, hidden May 2018)
Oxford’s Wild Wolf One (GC7Q9E6 / OK0457; traditional cache, hidden May 2018, archived September 2018)
Oxford’s Wild Wolf Two (GC7Q9FF / OK0458; traditional cache, hidden May 2018, archived September 2018)
Oxford’s Wild Wolf Three (GC7QG1Z / OK045A; multicache, hidden June 2018, archived August 2021)

Broad Street Webcam (Oxford Martin School) (OK045B)
The Trout Trek (GCD6A6 / OK046A; traditional cache, hidden February 2003 by The Matson Bicester Clan, adopted June 2018 after a period of neglect because it’s a great location and one of Oxford’s oldest caches and so deserves some love and attention)
Grove Farm (OK04AB / GC86M6V, hidden April 2019)
The Devil’s Quoits (GC88ZY9, created June 2020)
Forgotten Bridge (OK04D8 / GC8W7QW, hidden July 2020)
Tiny Log Book (GC90RH3, hidden October 2020)
The Bisected Footpath of Blackditch Fields (GC9EXX4, hidden August 2021)
Shady Seat on The Green (GC9EXXC, hidden August 2021)
Church Micro 14129…Sutton (GC9EXXX, hidden August 2021)
Beam Approach Training (GC9EZ55, hidden August 2021)
Archived
The following geocaches can no longer be found:
Badge Cache Capel Madog (GC23P6J; traditional cache, hidden February 2010, archived May 2018)
The Oxford Steganography Series, consisting of five mystery caches hidden in May 2014:
Oxford Steganography #1 – Open In New Tab (GC54F78; archived February 2016)
Oxford Steganography #2 – Selected Text (GC54F7B; archived February 2016) – source code for the puzzle
Oxford Steganography #3 – X-Ray (GC54F7J; archived February 2016)
Oxford Steganography #4 – Tilt (GC54F7N; archived February 2016)
Oxford Steganography #5 – Secret Bonus Cache (GC54F7V; archived June 2016)

You Can’t Do It Alone (GC591VV, hiden July 2014, archived April 2018), an adventurous mystery cache that used some clever electronics to construct a cache that strictly required the cooperation of two geocachers together, as explained in this blog post
The Fairy Elevator (OK045C / GC7R0HB, hidden June 2018; archived October 2019)
Kinkering Congs Their Titles Take (GC1G4E3 / OK045D; puzzle cache, hidden September 2008 by Stemonitis, found April 2014, adopted June 2018 because I’m a huge fan of this particular puzzle and its cache, archived 2020 after a long period of deactivation following the GZ becoming a dumping ground for used hypodermic needles)
2019-01-08 51 -1, 09:19 (OK049E / GC827X6; puzzle cache, hidden during a geohashing expedition on my birthday, January 2019; archived October 2020)
Top of the Footpath (OK04AC / GC86MHH, hidden April 2019, archived August 2021)
Yarnton Lane (OK04AD / GC86MTH, hidden April 2019, archived August 2021)
Sunken Bunker (GC8YZKJ, hidden August 2020, archived August 2021)
Geohashing
Geohashing expeditions
Profile on wiki.xkcd.com