Every year, thousands flock to the southern tip of South Korea to partake in the Jindo Miracle Sea Road Festival. The event celebrates a natural phenomenon in which the Jindo Sea opens up to expose a 1.8 mile long stretch of sand that connects two of the country’s islands. While legend has it that the extraordinary happening is the work of the god of the sea, science suggests it is essentially a perfect storm of gravitational forces. For the time that the path is visible during the festival days – in addition to the two or three other times the...