Time: Saturdays, from 7:30

   Place: near the Royal Observatory

   DLR/rail station: Greenwich

   Map: here

Hyde Park

   Time: Thursdays, from 7:00

   Place: East side, near Park lane and the Serpentine

   Tube stations: Marble Arch, Hyde Park Corner 

   Map : here

Richmond Park

   Time: Sundays, from 10:00

   Place: near Richmond Gate and Pembroke Lodge

   Tube/rail station: Richmond

   Map: here

  *Please arrive 15 minutes in advance, if possible.