Where: Mountsfield park, Stainton Road, Lewisham, SE61AN
Meeting point: Meet at the bandstand at 9.40am
When: Last Saturday of every month
Ambassador: Freya Rodger
Contact: Twitter @freyathlon
Where: Southwark park, just off lower road in Rotherhithe in the borough of SouthWark. SE16, London.
Meeting Point: Meet at 8.30am at Canada water station or in the park at 8.45am next to the gallery by the lake.
When: The last Saturday of every month
Ambassador: Carolyn Garritt
Contact: Twitter @carolyngarritt.