Boast alert...
DS2 (3y7m) managed to swim 10m today, unaided. I'm most proud of him because for the last 2 months he'd lost his nerve when it came to "proper" swimming and even at the beginning of the lesson today he was adamant that he couldn't swim without help. Some concentrated encouragement and he managed it after the lesson had finished - the instructor stayed late to give him another go.
I feel all warm inside