Ttukbaegi Seopguk is a seopguk restaurant near Sokcho Lighthouse Beach in Sokcho. The seopguk is made with plenty of real mussels, called seop, and boiled with red pepper powder and black pepper for a spicy broth. Water and side dishes are self-service, and food comes out in a ttukbaegi as soon as it is ordered. Lines form in the morning and at lunch.