Chaeseokgang refers to a rocky cliff and the sea around it, situated in the Gyeokpohang and Dakibong areas on the Byeonsan Peninsula. It is easy to misunderstand the name for a river, but it is a very large rocky cliff. The origin of the name comes from China, from the story of Lee Tae-Baek, while drinking wine on a ship, he saw the moon reflected in the river and jumped into the water to grab it. The name Chaeseokgang was adapted as it resembles the Chinese equivalent of this location.Chaeseokgang was created from many layers of rocks stratified by the sea, and the blue sea and the rock cliffs together create quite a lovely picture. It is nature’s masterpiece of stratification, and you can see interesting structures and shapes here that are not seen elsewhere. You can enter Chaeseokgang twice a day when the water recedes, and at low tide, you can observe various sea life existing in the lower areas of the rock cliffs and the cave. If you are able to see the sunrise or twilight at the cave, the scenery there is simply awesome.Around Chaeseokgang, there also lies the stately Mt. Naebyeonsan as well. Mt. Naebyeonsan has a temple called Seonunsa Temple, and it is a fine place to be introduced to Buddhism. The quiet mornings and evenings at the temple adds to the calmness and beauty of the twilight.