From Chef AJ who explained that this is a favorite of the world-renowned Beatle photographer Henry Grossman
Cube the watermelon and cucumber. Add fresh mint and lime to taste.
Chill before serving.
Chef AJ’s Note:
I like to use twice as much watermelon as cucumbers.
The amount of lime juice and mint is to taste.
If you keep this more than a day or two and it gets soggy, try blending it with ice for a refreshing slushy.