When it gets hot, I think it helps to know someone with a swimming pool.

Swimming.
That way, you can impose on them and cool off.

Splash down.
It doesn’t hurt to splash the people outside the pool, too. They appreciate it, even if they say that they don’t.

Bathing Beauties.
You can also take the opportunity to teach your little sister to swim.

Time for drying.
And just hanging by the pool is fun, too.