Where do you get ice beam Pokemon diamond?

TM13 - Ice Beam (Special)

Type: Ice
PP: 10
Power: 95
Accuracy: 100
Information: 10% chance of becoming frozen.
Location: Route 216 (using Rock Climb)
2nd Location: Exchange at Game Arcade for 10000 coins
Suggestion: Awesome. This should be your ice move of choice.

Thank you