why only two elephants?

I'm glad that these two elephants were lucky enough to get a day at the beach, but I can't help but wonder: why only these two?  What about the other elephants; how do they stay cool on the hottest day in Tokoyo?  Couldn't they clear the beach for a few hours on the hottest day so that all the elephants could cool off?


Elephants Hit the Beach

Also, that elephant standing on the beach the entire time...the one that's just swinging his head back and forth, back and forth...is he just enjoying the movement or is he stressed?