Nine charity swimmers who sparked a major search because they didn't check in after finishing the race in Bournemouth on Sunday probably cost more money then they raised.

The RNLI had to send out three lifeboats and a helicopter, at a cost of thousands, to try and find the group, who it later turned out had simply gone home after completing the Pier to Pier Challenge in aid of the British Heart Foundation.

The BHF says it followed an agreed safety protocol and made it clear participants had to check in afterwards.