Taken on our walk this morning, a super warm (28 degrees) today and wall to wall blue sky. 
Shortly after this was taken we came to a part of the river that's densely covered in duck weed.   Unfortunately for Luna she didn't realise this and launched herself onto it to pick up a stick that was laying  there.   My heart was in my mouth as she disappeared for a few seconds before reappearing, spluttering and covered in duckweed.   I can thankfully confirm that she can swim !!