Danny,
If you start placing bolts anywhere in Britain apart from on established sports climbing crags you'll cause uproar. If you place a bolt on gritstone you'll probably be hunted down and lynched by the local gritstone mafiosa.
In your photo above, there's no heed to drill the rock anyway. You should be able to hang your hammock using slings, from the chockstone on the right, and to the thread on the left where the top boulder touches the bottom one.
If you have a look in a climbing book that explains how to use leader placed protection you'll get lots of ideas on how to hang your hammock without drilling the rock. Some of the older books might actually be of more use, since they often mention the original technique of jamming pebbles and stones in cracks to create a manmade chockstone.
Cheers, Michael.
If you start placing bolts anywhere in Britain apart from on established sports climbing crags you'll cause uproar. If you place a bolt on gritstone you'll probably be hunted down and lynched by the local gritstone mafiosa.
In your photo above, there's no heed to drill the rock anyway. You should be able to hang your hammock using slings, from the chockstone on the right, and to the thread on the left where the top boulder touches the bottom one.
If you have a look in a climbing book that explains how to use leader placed protection you'll get lots of ideas on how to hang your hammock without drilling the rock. Some of the older books might actually be of more use, since they often mention the original technique of jamming pebbles and stones in cracks to create a manmade chockstone.
Cheers, Michael.