the water buffalos
'Session' is the best term to describe the time spent bowling. It can also be called a practice or a practice session. Practice with a purpose is called training, or a training session; if a teacher or tutor is involved, it's a bowling lesson. A tournament session is known as a squad, and a league session is often just called 'league' (as in, "Do you have league tomorrow?").
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50 of them
A Bowling Alley
Bowling ball, bowling shoes, and bowling bag.
Bowling ball Bowling shoes Bowling bag