Thanks for the replies. We were up there again this afternoon but still haven't had a chance to head up after dark, will probably have a look next weekend.
Kids drinking in the park wouldn't bother us too much - sure that was us once!
In the meantime we have heard there are plans for developing the school just there on Nephin Road, I haven't been able to find out much about it except for this article, and some info on the CIDP site, but it's got us a little worried about being next to a site for a few years:
[broken link removed]