It's not far off a bridleway, with the local estuary as a water-source (I wouldn't drink from that though!) ... The area surrounding it is flood plains, but this itself is a safe area.
The edge-line on top is safe, or as safe as it could be with no evidence of any slips or accidental fallings - It has in the past been used as storage although there is no recent activity - This is one of three areas such as this along the shoreline.
If memory serves, it's part of the National Park (I've already e-mailed asking permission, waiting for a reply) but not far across the waterway is another areas that is nigh on untouched (Boulston ... Greg you know the one I mean!).
Not far around the corner is a few houses, with a lot of the land towards that direction privatised ... I've had the fortune (mis!) of meeting said owners and they aren't very friendly (apparently, I am not even allowed to take photographs in that direction!!).
P.s. Greg, I know you're thought's about Boulston being flooded during high tide, however I've been down there on a 7.8M tide and it's been fine