Donghae Boyang Hot-spring Convention Hotel in Mangsang-dong, Donghae-si, Gangwon-do, has the fourth government-designated hot spring in Korea. Facilities include accommodations, restaurants, banquet halls, hot springs with proven therapeutic effects, and others. The hot spring draws from mineral-rich seawater found in natural bedrock and red clay bedrock water found 900 meters underground, which relieve fatigue and provides skincare benefits. The guest rooms feature white wallpaper and white bed...