Island otters

Lynn was looking out the living room window one evening when an otter climbed up onto the jetty with a dogfish, and had a meal. That was some time ago, and we hadn't seen an otter for several months until Lynn and Eddie disturbed one last Sunday on one of their long island walks. So, I'm about to head off in the boat on spec, armed with the camera and a 600mm lens - you never know, it's a still evening so I should be able to see any disturbance in the water from a good way off. Wish me luck..