By Lindsay Rogers Every year, tour operators gear up for “bioluminescence season” at a handful of destinations around the globe. It’s a phenomenon nearly as old as time itself, yet — according to a recent study by travel company and online search system Next Vacay, which set out to determine the most popular bioluminescent destinations on Instagram — Google searches for terms like “how to see bioluminescence” have increased as much as 400 percent over the last year, pointing to a renewed interest in the glowy, naturally occurring sensation. Russell Markel, PhD, is a marine ecologist who has sp…