Mina is throwing a pool party! All of Class 1-A is there.

Kirishima: CANNONBALL!!! jumps into pool Bakugo: WOOOH! jumps into the pool after Kirishima Mina, tsuyu, momo, and Uraraka are tanning

Iida: air chop NO RUNNING! Mineta: running around the pool. He slips and falls on his face