Thanks Rhiannon and having a look at the pix.
I'll revisit the Severn site again and get a good GPS ref on it. I'm reluctent to give a general OS Ref as I mentioned before the area can be quite confusing, especially when the tide is coming in, it has a knack of getting around the back of you :-(
I know we can't mention Roman's here. But a roman cremation pit was found in Severn Beach, good stuff. I can't believe there is so much stuff of interest in my local patch :-)
Sometime the area can you look bleak, so much sky :-) The sunsets are superb and SSSI widlife make up for it.
Cheers fro now, and a Merry Xmas,
M(Ike)