For day 4 of the Capital Ring I was joined by Pauline, who plays an important role fund raising for the Mayor of Redbridge's charity appeal. The day was overcast and rain fell sporadically as we covered the four miles from Crystal Palace to Streatham. From Crystal Palace station, we crossed Anerley Hill and climbed steeply along roads lined with pleasant houses, to the top of the ridge where the A212 runs. Beyond the road the steep hill slopes down through Westow Park and we leave Bromley behind, entering the sprawling borough of Croydon. At the bottom of the hill is a wide bowl of land surrounded by built up ridges, with the South Norwood transmitter mast looming behind. The path crosses an open space before climbing up again - this stage contains lots of ups and downs as the walk navigates the high ground west of Crystal Palace. A lengthy walk along the A215 concludes with a steep descent at Biggin Hill - not the famous one - to some tennis courts which were fully occupied despite the changeable weather. Passing through a small wood and a calm suburban area, the walk comes to Norwood Grove, and it is time to climb once again, to the house on the hill. Norwood Grove seems to be a large enough mansion, but in fact it is only one wing of the original house, built for Arthur Anderson who founded P & O Shipping. He was obviously not short of a bob or two and was allegedly a supporter of Crystal Palace Football Club. In his spare time Arthur was an MP, representing the Shetland Islands - clearly living in the constituency wasn't such a big deal in the 1840s. The gardens here are well cared for and I paused to be photographed with some red roses. After more undulations the walk arrives at the top of Streatham Common, and a return to civilisation. We had arrived before the pubs opened so contented ourselves with a strong mug of coffee in the local caf. Four miles had passed very swiftly, and just as well because the rain had started to fall. Ahead lies Day Five, a longer walk through more built up terrain, but without any hills to speak of, concluding at Wimbledon Park.