8K Natural Wonders -- The Underwater Cave of the Yucatan

A wondrous exploration in a world-first filming of its kind

Under the lush foliage on Mexico's Yucatan Peninsula extends the world's largest underwater cave system. Countless "cenotes," or natural sinkholes, serve as entrances to this underground world. NHK's 8K camera delves deep into this rarely accessible cave system to film what few have ever laid eyes on. Amid the crystal clear water unfolds vistas of pristine stalactites, preserved since the Ice Age. Also featured is an underwater "water surface" created at the halocline, the border where fresh and salt waters meet. An immersive dive into one of the most gorgeous, unearthly places on the planet.