If they have more time, they can explore the nearby Dongdaemun Shopping Market District, where they can shop for trendy clothes, accessories, and cosmetics. Alternatively, they could visit the nearby Seoul City Wall, an ancient city's wall that stretches around the capital.
If they have less time, they may skip the Namsangol Hanok Village or Heunginjimun Gate. Alternatively, they may consider adding stops around Dongdaemun area, such as the DDP Park, Seoul Fortress Wall, and the City Wall Museum.