The Summer Sun celebration occurs every year in Equestria on the solar equinox.
But surely the longest day of the year also happens everywhere else, right? So how do they go about celebrating it in places where no one has ever heard of (or at least doesn't care much about) Princess Celestia?
Luckily, there's one scholar who's eager to find out, and he's keeping a dedicated log of all his travels.

A submission for the Summer Sun Celebration Event hosted by the My Little Reviews & Feedback group. Hopefully I've managed an entry that successfully follows all all 26* entry rules and requirements.

Prereading provided by Holtinator, go check out their stuff as well!