Preparation: Season the scallops or shrimp with sea salt.
Wrapping: Wrap each scallop or shrimp with a slice of bacon, securing the ends with a toothpick if necessary.
Slow Cooker Setup: Arrange the bacon wrapped seafood in a single layer in the slow cooker. No need to add water or broth, as the bacon will render fat that will help cook the seafood.
Cooking: Cover and cook on low for 2-3 hours, or until the bacon is cooked through and the seafood is tender. If you prefer crispy bacon, you may finish the rolls under a broiler for a few minutes or pan-sear them quickly before serving.
Serving: Serve the bacon-wrapped seafood rolls hot, as an appetizer or a main dish.