This really is good - obvious - but thinking just outside the box

[Rick Riding]

 

https://www.youtube.com/user/mikebarter387#p/a/u/2/pPpAkFZT_lM

 

(Natural anchors . )

[Jeff Horton]

I wonder if he could make an anchor with the beer can sitting on the ledge of the left hand side of the frame (which falls off at around 5.30 - maybe he should have securely anchored it)

[Mark Ainsworth]

I bet Derek knows about the 'Pocket full of pebbles' (the original rack) !