Green’s Dictionary of Slang

greyhound racing tracks.

1960		J. Franklyn Dict. of Rhy. Sl. 50/1: To go to ‘the cherries’ is to go to the dog-track.
1969		S.T. Kendall Up the Frog.
1977		D. Powis Signs of Crime 177: Cherries (cherry-hogs) Dog racing tracks.
1989		J. Morton Lowspeak.