Open water swim
During the warmer months we often car-share to Denham Lake (http://www.denhamwaterski.com/Open_Water_Swimming.html) to open water swim train.
A few of us meet at Hemel Sport Space at 8:10pm on Wednesdays.
We team up with the Club led sessions that take part on Sundays, depart from Hemel Hempstead Train Station at 9am sharp.
All the details are here
Much of our run training is done solo, but people do arrange ad-hoc runs themselves. A lot of us belong to local run clubs for speed sessions or long group runs.