As part of our wearable devices project we've been collecting gigabytes of swimming data. This month the team were in Spain and took the opportunity to collect some more sets in the hotel's 25m (unheated) infinity pool. It was early in the morning and at the end of October - so best described as "refreshing". Here's Jude on her first of many freestyle sets - if you look carefully you can spot Dan bravely jumping in about to start his.