This site is designated as Korean Natural Monument #417 (link).
This is a very scenic place were a river made a small pond where it was blocked by a limestone rock. Over the millennium, the limestone eroded into a hole. The river now flows through a hole that it bored itself over time down to a calm reflective pool.
Its a nice place to stretch your legs and get some fresh air. It is free to visit and only takes as much time to visit as you wish to spend. There is a small walking path that crosses a bridge, goes up and over the river on the back side and then crosses again on a second foot bridge.
Written Sep 17, 2009
Address: Between Samchok and Taebek
The north east mountains of Korea are some of the most beautiful on the peninsula. The geology in this area also make it a prime location for caves.
The Hwanseongul Cave is one such monstrous cave. Only about 50% of the cave is open to the public with a lit boardwalk and stairs in side. The current path open to the public is approximately 1.6km in length. Taking your time, it could take you 1.5 hours to walk the entire circuit.
From the parking lot, there are a few different caves to choose from, but this is the most popular. Unfortunately, it also requires the longest walk up the mountainside path. From the parking lot, you must walk approximately 1.5 km uphill to the entrance of the cave.
Written Sep 17, 2009
Address: 30 minutes drive west of Samchok
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Reviews and photos of Samch'ok attractions posted by real travelers and locals. The best tips for Samch'ok sightseeing.

The north east mountains of Korea are some of the most beautiful on the peninsula. The geology in this area also make it a prime location for caves.The...
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Samchok, located on the north eastern coast is a popular town/city to start from in order to visit the majestic mountains in this area and the many large limestone caves. The town itself is nothing...
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