The Boston Globe:

Hot air balloon festivals are a visual treat for many. Not only do they provide a stunning perspective for their passengers, but their playful shapes, colors, and themes make these floating vessels excellent subject matter for photographers, both on the ground and in the sky. Here is a look at some of the 2015 balloonist gatherings around the globe.

I’ve always told my students, if you ever want guaranteed great photos, find a hot air balloon festival.