We learn in school to: Be on time, Don't always be noticed, Exercise when you can.

For this cache, I translate those to

1. Find and log this cache at an appropriate time. School time is NOT an appropriate time. When there are hundreds of muggle children playing at the nearby playground, you shouldn't be looking for this cache. Wait until after school hours.

2. Use stealth so muggles don't notice you.

3. Yes, you'll likely get in some exercise on this cache.

This cache is not on the school grounds.