Favorite activities for tourists are hiking, fishing, and eating hoe (a Korean raw fish dish). Sightseeing boats make regular three-hour circuits about Ulleung-do, departing from the harbor at Dodong and passing by all the points of interest along the coast, including many interesting rock formations and the small neighboring island of Jukdo. Other scenic sites are Seonginbong, the highest peak on the island (984 m (3,228 ft)); Bongnae waterfall; the "natural icehouse"; and a coastal cliff from which Liancourt Rocks (Dokdo) can be discerned in the distance.

The island consists primarily of trachyandesite rock. A major explosive eruption about 9,350 years ago reached a Volcanic Explosivity Index of 6 and deposited tephra as far as central Honshū over 800 km (500 mi) away, while producing pyroclastic flows on the island and decapitating its top to form a caldera.

When someday comes you'll need to get in.

When someday comes you'll need to be able to get around.