Great Northern Diver

I arrived at 10:15 to see two birders walking up to the road. The diver was in the middle if the dam. as I got to the small bay (just south of the floating harbour) it flew towards me and landed about 100 yds off and steadily came within 20 yds. My last view was at 10:45 and it was heading for the very southern narrow part of the dam. By far my best view ever of any diver. Little grebe present. Goldeneye on Ringstone.