Thousands attend Jindo Sea Parting festival in South Korea

The four-day festival, the dates of which change slightly each year, is a popular attraction for both tourists and locals - many of whom take the opportunity to dig for shell fish and collect seaweed. (Photo: AFP)

In a photo taken on May 18, 2018 a woman poses for a photo before the sea during the 'Jindo Sea Parting festival' in the southern island of Jindo. The annual phenomenon, the effect of which was diminished this year due to poor weather conditions, is understood to be a result of 'tidal harmonics' caused by the relative positions of the Earth, Moon, and the Sun. (Photo: AFP)

In a photo taken on May 18, 2018 people make their way to the seashore during an annual extreme low tide event during the 'Jindo Sea Parting festival' in the southern island of Jindo. When 'in phase' create an extreme low tide revealing a causeway between 40 and 60 metres (131 - 196 ft.) wide for around one hour between the islands of Jindo and Modo, on the southern-most tip of the South Korean peninsula. (Photo: AFP)

In a photo taken on May 18, 2018 people make their way out to sea during an annual extreme low tide event during the 'Jindo Sea Parting festival' in the southern island of Jindo. There are many fun activities for visitors to enjoy that is part of the festival. (Photo: AFP)

In a photo taken on May 18, 2018 people wait for an annual extreme low tide event during the 'Jindo Sea Parting festival' in the southern island of Jindo. Close to half a million people flock to witness the amazing event. (Photo: AFP)

In a photo taken on May 18, 2018 a man and child pose for a selfie as they return from the sea during an annual extreme low tide event during the 'Jindo Sea Parting festival' in the southern island of Jindo. The local "Mysterious Sea Way" festival became internationally known in 1975. (Photo: AFP)

In a photo taken on May 18, 2018 a woman waits for an annual extreme low tide event during the 'Jindo Sea Parting festival' in the southern island of Jindo. The four-day festival, the dates of which change slightly each year, is a popular attraction for both tourists and locals - many of whom take the opportunity to dig for shell fish and collect seaweed. (Photo: AFP)

In a photo taken on May 18, 2018 people look for seaweed and shellfish during an annual extreme low tide event during the 'Jindo Sea Parting festival' in the southern island of Jindo. (Photo: AFP)