1. Cut the bacon into small, thin slices and then fry until just starting to crisp up. Strain the fat and set aside.
2. Rinse the oysters, using a brush to remove any dirt or grit. Set the oysters in a strainer or steamer, cover, and steam over boiling water until they just start to open, about 3 - 5 minutes. Use a knife to carefully remove the top shell. Discard the top shell and keep the oysters in the bottom shell.
3. Line a baking tray with 1 ½ cups coarse salt to steady the oysters. Press the oysters down into the salt and then garnish each oyster with a small amount of bacon. Slice the cheese into 12 even slices and place 1 slice over each oyster. Set the oysters under the broiler on the second highest rack. Bake until the cheese is melted and just starting to brown, about 5 minutes.
4. To serve, place the oysters on a platter lined with 1 ½ cups coarse salt.