This was originally placed as a cache to make you smile. It was at a squirrel-shaped bench - and we'll leave it to you to guess under which end it was placed! 
Sadly, several years later, Mr Squirrel has finally met his end and rests in pieces at the original GZ. The cache itself is now at a very-close-by but yet much less humorous spot. See the hint for more detail.
N.B. The path to this cache, unlike the majority at MSW, is not officially deemed suitable for wheelchairs, though on a dry day you may want to attempt it (others have, and been fine). Motorised wheelchairs are usually OK on this section.