From parasailing over crystalline jewel-blue waters, getting your adrenaline fix at the Shinhwa World waterpark, and saying hello to penguins at Aqua Planet to quirky horse-shaped lighthouses, an artisan park featuring miniature World Heritage structures, and enchanting mazes crafted out of natural landscapes, Jeju has no shortage of exhilarating and unusual diversions! However, the gargantuan UNESCO-listed Manjanggul Cave, elaborately carved by lava flows with bizarrely beautiful rock architecture, stalactites, and stalagmites, stretching for a mind-blowing 9 km with a staggering 7.8-metre-tall lava column marking its end, tops the list as a quintessential Jeju experience!