This is a physical bonus cache for completing the "Wonders of Weston" Adventure lab.
Wonders of Weston is a programme of remarkable and memorable artworks, part of the national Sea Change initiative (2008–2010), which aimed to support the revitalisation of British seaside towns. Launching on 29 October 2010, Wonders of Weston features artworks by artists Ruth Claxton, Tim Etchells, Lara Favaretto, Tania Kovats in association with landscape architects Grant Associates, architects raumlaborberlin and artist collective Wrights & Sites.
There is nothing at the location, the co-ordinates for the bonus cache are revealed at the final stage of the adventure lab.
The cache is located at knee height