We wanted to include a swim in our 500 Fresh Air Miles Challenge, so we decided to maximise the small-ish swimming pool at the Looe Caravan Club site. It was only 18 metres long, but we worked out that we just needed to swim 83 lengths in order to swim 1 fresh air (or fresh-ish water) mile.

Here’s how we broke down the lengths between us:

• Amy 40 lengths
• Ella 40 lengths
• Kerry 83 lengths
• Tim 3 lengths

As you can see, we swam a total of 166 lengths – the equivalent of 2 miles! Well done girls; well done Kerry… er, not so well done me.