This diorama shows a German U-Boat bunker shared with S-Boats. The diorama was built by Dong hwan Seo of the Korea Model Warship Club. Various 1:700 scale models were used for the diorama. From Skywave there was the bunker itself, the S-Boats and the trucks. The U-Boats are from Hasegawa. The tug boat, crane, oil storage tank and factory are from Tamiya. Brass two-rail photo-etch and figures are from Tom's Modelworks.