Complex sentence: The length of the pool for diving is 25 meters in height and 20 meters in width and has a five-stage platform for high board diving from a height of 3,5,7,5 and 10 meters.
Split into simpler sentences: The length of the pool for diving is 25 meters in height and 20 meters in width. Five-stage platform was built for high board diving from a height of 3,5,7,5 and 10 meters.