I captured this shot from the promenade at Warrenpont.  It lingered in almost the same spot for at least an hour or maybe replaced itself every so often!  I was intrigued that it had thrown its arc to encompass the Mournes.  It seemed to be saying 'Hey, look at me!  Take my photo!'. Five minutes later it had disappeared.  Then there is something about about rainbows and luck isn't there?