Catch a London Overground train to Battersea Park station

Of all the stations that a London Overground fan would want to visit, Battersea Park is probably the hardest, but one Sunday in June is your chance.
Battersea Park does not appear on the main London Overground maps, as trains only call there a handful of times at to keep the line active. At the moment, the normal timetable sees a London Overground train start/stop at Battersea Park only at the very start and end of the day. On Monday to Saturdays, one London Overground train leaves Battersea Par