The islands are also known as the Liancourt Rocks, a name given by a French whaling ship in 1849, and as Takeshima by the Japanese, who claim the island belongs to Japan.
A political hot spot, this speck of an island has a complicated and contentious history stretching back to 512 A.D. Korean and Japanese fisherman have fished in nearby waters since time immemorial, and references to a Korean island that may or may not be Dokdo have been documented in historical records since the 6th century.
For a while now there has been a heated debate between Korea and Japan, with both staking claim to the island. The trouble began in 1905, when Japan incorporated the island, claiming that it was terra nullius (unowned land). Korea was a Japanese protectorate at the time and in no position to object.
After World War II, the San Francisco Peace Treaty of 1952 explicitly gave Korea control of Jeju, Ulleungdo and Geommun-do, but Dokdo was left out of the agreement completely. The islands have been under de facto Korean control ever since, but to this day, Japan continues to assert that the islands are theirs — a very sore point in Japan-Korea relations.
Access to visitors was limited until Japan's Shimane prefecture declared a "Takeshima Day", inflaming the already volatile situation. The Korean government responded by opening the island up to tourists on March 24, 2005. Since then, an average of 80 thousand visitors visit the island every year.
A fisherman by trade, Kim Sung-Do and his wife Kim Shin-Yeol are the only permanent residents on the island. There are also a small dispatch of security police officers, representatives from the Ministry of Maritime Affairs and Fisheries and three lighthouse keepers who reside there on rotation.
 Get in
 By Boat
To get to Dokdo, you must first get to Ulleungdo. There is only one charter company that has boats ferrying you to and fro. The Dae-A-Express has two ports, Pohang in North Gyeongsang-do and Mukho in Gangwon-do. From Pohang, it takes about 3 hours to get to Ulleungdo from the mainland. It takes a little less time from Mukho, about 2 and a half hours. The boats leave once a day. From Pohang the ticket fare is 58,000 won. From Mukho it's a little cheaper at 49,000 won.
The Dae-A-Express and the Tour and Shipping Company operate ferries to Dokdo. There are three boats that leave daily. However the ferry schedule is subject to frequent changes. So it is advisable to reserve seats to Dokdo before reserving them to Ulleungdo. Prices range from 42,000 won to 45,000 won.
 Get around
The fisherman, his wife and employees working at the island will have boats for their personal use. For everyone else, all that is available and necessary are your feet. Since the island(s) are so small and 20 minutes are what you're given to see the sites, there really is no need for anything else.
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The small island is mainly volcanic rock with patches of lush grass. The two islets that make up Dokdo, each have their own particular features. Seodo (West islet), the smaller of the two, is where the fisherman and his wife live. Their house is at the bottom of the steep cliffs. Dongdo (East islet) has a large crater at the top that runs right to the water. The other highlight is the "Hyeongje" Cave. It is also where the security officers are stationed. Between the two is another cave, the "Cheonjang-gul".
Because the warm and cool currents converge in the surrounding area, a great variety of fish thrive there. Also Dokdo is home to a multitude of birds. One of the reasons the island was closed off to the public was to preserve the natural ecology.
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Normally, you would have 20 mins to look around. So, mostly you would hike around a bit.
 Stay safe
Since the island is so far from the mainland, the weather can get extremely erratic. At times the boats will not run because sea storms or choppy water. So it is prudent to call ahead of time.
If you speak Korean, the Ulleungdo and Dokdo Administrative Office can be reached at 054-790-6645~6.