In a large pot over high heat, bring the water to a boil. As the water warms, prepare an ice bath by adding ice cubes to a large mixing bowl then filling halfway with water.
Add salt to the boiling water so it tastes salty, like the sea, then add the beans. Blanch the beans until they turn bright green, about 1-2 minutes, then remove them with a slotted spoon and place in the ice bath. When the beans have cooled, drain and set to air dry on a lined sheet tray. (Alternatively, you can place a steamer basket above the boiling water and steam until the beans have reached your desired level of doneness).
Just before serving, toss with the olive oil and season to taste with sea salt. Pile in a serving bowl or platter and top with with fresh chopped dill.