"Lake surrounded by mountains in an unknown location" (is lakes of Killarney) (26040083492)

We are with Fergus O'Connor today. I find this a most fascinating photograph. Can you please tell me two things, firstly I would like to know the location and secondly I would like to know what exactly is going on in the right foreground?

With thanks for today's contributions, it's established that this is the Upper Lake at Killarney. As to what's happening in the right foreground (the photo-bombed "arrest" by a truncheon wielding lawman), we've heard several theories. But nothing to explain the odd dichotomy of serene landscape and (possibly staged) action/commotion. Perhaps it will always remain a mystery - as perhaps was intended....

Photographer: Fergus O’Connor

Collection: Fergus O’Connor Collection

Date: 1900-1920

NLI Ref: OCO 262