sounds like a good weekend! we went to Greenwich on Friday (like this: Tube to Bank, walking along the Thames till Canary Wharf, DLR to Greenwich, back with bus and Tube...that was a long day!). the park is beautiful and there are some quiet places. on Saturday we did a detour on the way to do our weekly shopping in the more or less local Lidl via a cemetery and saw a fox and some green parakeets, we think. that was quite something.