A Scottish drone pilot got more than he expected during a coastal flight on Halloween, when his craft videoed a mysteriously boiling area of sea water resembling a giant witches’ cauldron.

Drone enthusiast Paul Young caught the eerie sea phenomenon on video while taking advantage of calm weather Sunday along the coast of South Ayrshire in southeast Scotland. When he first spotted the bubbling, swirling froth of water about a mile off shore, Young said he thought it might be a whirlpool, or convergence of exceptionally strong riptides. But when he got the UAV back home and took a closer look at the footage, the 46-year old accountant realized it was something else altogether – though what remained a mystery.

“I spotted the anomaly on the water when flying my drone close by, so I diverted it over for a closer look,” Young told the Daily Record. “When I got home and looked at (the footage) I realized there was a large dark patch round where the water…

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Source: dronedj.com