Developing Memory can be a drilling experience.
Ballet's requirements to remember the sequences of drills at the bar, and the combination of steps in center floor is excellent memory stimulation. It is impressive to see young students develop this capability.
Of course, most sports will provide exemplary drill for improving memory skills.
Drill: Of course, there are activities that are nothing but drill. Practicing recalling increasing strings of digits or letters or both would be one example. Reciting poems like "This is the house that Jack built" would be another, or playing the short-term memory game where one person says, "I went to the store to buy a loaf of bread;" the next person says "a loaf of bread and carrots;" the third person says, " loaf of bread, carrots, and milk;" and so forth till the list becomes a struggle to remember.