saw something like that a few years ago, at about 3am on the lighthouse, a bit of a brown trouser moment, didnt know what the flip was going on,, on the same subject of the lighthouse, me and a few mates had our first night time /late evening session, by our selfs, it was about 1977 ish all of us about 13 ,14 yrs old, the day before we had been to see Close Encounters of the Third Kind, whilst fishing at about 11.30 we witnessed the Northern Lights,having no knowledge of what it was we were seeing, & being 13 we thought we were getting invaded, Im laughing now but at the time it was`nt so funny, Ihave never seen them again in this country,