She knows me too well for that! It's not worth me trying to tell her a porkie, she'd know straight away.
I've just looked up the swim from Limni to porto timoni (a 20m walk) which according to google earth is just 1800m, all next to the shore, so that might be a good practice, as we go down there most days anyway.
On another note, I just had a reminder email from the airport to let me know we're going on holiday in 48 hours. Not sure why they think I need reminding.