It's b-a-a-a-a-c-c-c-k!

It's the best free entertainment in the city for kids of all ages. It can keep them occupied and happy for hours.

It's the fountain at PPG Plaza (which converts to an ice rink in winter). where water pulses from the surface up to a height of more than 15 feet. There's no barrier between the fountain and the rest of the plaza and kids delight in playing among the 140 columns of water that shoot up at various times.

Just remember these guidelines:

• Children must be supervised by an adult at all times

• Running is not permitted

• Street clothing is required at all times

• Beachwear, towels, and sunbathing on the Plaza are NOT permitted

• Lying or sunbathing on the Plaza surface is not permitted

• Bikes, skateboards and animals are not permitted on the Plaza.

• Do not drink the water -- it is chemically treated and re-circulated.