The Lee Valley Savi's was singing well for it's third day this evening, though wasn't seen at all between 7 and 9pm. Best access is probably from the Hooks Marsh carpark at the end of Fishers Green Lane - see >this map<. Walk west from here, over the high bridge, and then about 400m north along the west side of 70 Acres Lake. Note that the carpark is (theoretically at least) locked at 7.30pm, so park before the barrier, unless you want to stay the night!
Also present was a superb Nightingale and 4+ Hobby showing well.
3 hours ago