How to See 4 Sports and 5 Gold Medals in 8 Hours at the Paris Olympics

The nerve center of most Summer Games is an “Olympic Park,” typically a collection of a half-dozen or so sports facilities clustered in one place. Sounds great, right? Here’s the dirty little secret: most Olympic parks are actually in a rather sterile part of a world-class city. Let’s all gather in a giant, overheated parking lot in the dead of summer!

In Rio, for example, the Barra Olympic Park—which hosted basketball, gymnastics, swimming, gymnastics...