crowds flocked to the festival to celebrate an ununusual natural phenomenon extremely low tides cause a strip of land to emerge. a sea way event attacks thousands. rob mcbride was among them. >> as sea receipts people stop moving. cautiously at first. then finding themselves on a strip of land that stretches from the main gindo island to the much smaller modo nearly three kilometers away. and then the fun starts collecting whatever unlucky creatures got left stranded by the departing tide. >> i just found it now. it's an octopus. >> a story goes a family left behind their grandmother when they were chased away from the island by tigers. grafrndma bong prayed to be reunited and magically, the seas parted creating a path across the sea bed that her family used to come back for her. so, the legend was born. playing on both the natural phenomenon and local folklore the community has created a festival around the event that grows in popularity. >> we are getting more and more international tourists and we hope one day this will become a major event that represents the whole of korea. >> it