The clip was filmed by drones at a place off the coast of the UK called Red Sands.

A press release gives more info on the unique location:

Just seven miles off the British coast is a place called Red Sands, where there are giant alien towers rising from the ocean on rusted legs. Built in the Thames Estuary to defend the United Kingdom from air raids during the WWII, the forts have been decommissioned for more than 50 years. Delicate and at risk, they are usually off-limits to the public, but the Mystery Jets got special access with the help of a group of passionate volunteers at Project Red Sands, to fly a drone around the strange structures and shoot a spectacular music video.

Curve Of The Earth is out now via Caroline International.

Watch the "Bubblegum" visuals below.