"The Magic Island" - Eocheong Island - Illustrated report of birding on this island in the Yellow Sea, from WBK English. - http://www.wbkenglish.com/eocheong.asp
Tide Table: Ochong Do, South Korea - Predictions of times and values of high and low tides, as well as sunrise and sunset. Not intended for navigational purposes. - http://www.mobilegeographics.com:81/locations/4356.html