"Salt Farming" is a traditional Korean fishing industry where salt is produced in an eco-friendly manner by naturally evaporating seawater using sunlight and wind. The southwestern coast of Korea, with its large tidal ranges and complex coastline, provides an ideal environment for salt farms. "Sinan Mudflat Solar Salt Farming" and "Buan Gomso Solar Salt Farming" in Korea are designated as National Important Fishery Heritage Nos. 4 and 10, respectively.

Salt farms for producing solar salt are primarily divided into reservoirs, evaporation ponds, and crystallization ponds. To produce solar salt, seawater is first drawn into reservoirs, then channeled through waterways to the large evaporation ponds. In the past, waterwheels similar to the "Waterwheel" displayed as exhibit #9 in the showcase were used to draw seawater. The video below the "Waterwheel" shows the process of water being drawn up and flowing into the salt pans, leading to the formation of salt crystals.

After about a week in the primary evaporation pond, the seawater reaches a salinity of roughly 6 to 8 percent and is then moved to a secondary evaporation pond. Once the brine reaches the appropriate concentration, it is transferred to the crystallization pond. The salt harvested from these ponds is then stored in salt warehouses, where it undergoes a process to remove the bittern. In the display case, you can see some of the tools used in the production of solar salt, such as exhibit #7 "Salt Basket" used for carrying salt, exhibit #8 "Stone Roller" for compacting the salt pan dykes, and exhibits #3 "Wheelbarrow" and #1 "Carrier" for transporting salt.