Ello cachers! As part of my first year "Into the World" Fine Art project, I've devised a geogallery whereby anyone is welcome to produce their own piece of art inside or alternatively, add to someone else's. You're looking for a regular sized camo bag, hidden at ground level. Inside holds a lock & lock container where posca markers, pens, graphite pencils and coloured pencils etc, can be borrowed to aid your artwork. The scale, style and medium is entirely up to you. Though there is a leather bound travellers journal for any 2D drawing and of course, a seperate logbook for all your geocaching signatures! 
The GZ can be accessed via the West Entrance of Loughborough University, Holywell Way. Parking spaces are available adjacent to the Holywell Park Conference Centre. No intense walking/athleticism required. Once you've the cache in hand, I warmly invite you to take a seat at the bench overlooking the ducks and begin your contribution to the gallery there- as to not confuse any student muggles!
I look forward to viewing your creations when maintaining the cache! 
-Megan (Callikid).