Time to explain the keep fit challenge that I have set for Jake and me during the course of February. We both have to ride (on the exercise bike) the day of the month x 0.5km every day during the month of February.
So, on the 1st, we only had to do 0.5km, and today we are up to 3km, which we have both managed, Jake with ease, and me with not too much trouble.
It'll be interesting to see how the month progresses and how we are doing by the time it comes to 14km on the 28th!