The Diffrent types of Swimming pools

There are diffrent types of swimmings pools,
Long course, Short course, and Recreational pools.

A long course pool:

A olympic pool Tony Hisgett from Birmingham, UK, CC BY 2.0, via Wikimedia Commons

A Short course pool:

A High school pool Koh-etsu, CC BY-SA 3.0, via Wikimedia Commons

A Recreational pool:

A High school pool Nayuki, CC BY 2.0, via Wikimedia Commons