Love in the amusement park is no roller-coaster ride with kids

I recently was asked by a dear friend to babysit her daughter and niece for the day. So, having no experience in child rearing, I decided to think like a 13-year-old.

What would I want to do at that "What do you know?!" age?

After suggesting we spend the afternoon watching (rewatching, in my case) Battlestar Gallactica and being met with the obligatory eyeroll, and then finding out they weren't pool hall fans, I decided to spend a couple hundred bucks! and take them to Happy Valley.