Littoral

littoral \ˈli-tə-rəl; ˌli-tə-ˈral, -ˈräl\ adjective: of, relating to, or situated or growing on or near a shore especially of the sea
noun: a coastal region, especially the shore zone between high tide and low tide points

Etymology: Latin litoralis, from litor-, litus seashore

According to Merriam-Webster’s online pronunciation audio clips, littoral and literal sound exactly alike. I guess one tells the difference based solely on context.