Warm weather means the pools open at the Zoo

PHILADELPHIA ZOO (WPVI) -- Two hippos at the Philadelphia Zoo got to enjoy the nice weather Thursday.

Cindy and Unna basked in the sun, and didn't waste any time jumping right into the pool.

They played with toys, as the excited crowd looked on.

You can go see the pair throughout the weekend, as they welcome spring with more swimming sessions, and special treats.