Although most people don't overnight in Samcheok, you can find a handful of motels around the intercity bus terminal. Most accommodations around here are cheap and not fancy, but serviceable. One of them is the Crown Motel, 94-8 Namyang-dong, Samcheok-si (tel. 033/573-8831), which has standard rooms for W30,000 to W40,000.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.