How to Retrieve the Sunken Key in Botanicula Part 3?

[DLSieving]

How can I fish this key out of the pond? I'd like to upload a screenshot but don't see how to do that.

[kyojin_desu]

http://www.gamezebo.com/2012/04/20/botanicula-walkthrough-cheats-strategy-guide/
Ctrl+F and search phrase "Try to take the final key".

[DLSieving]

Thanks!