adjectives
(of winds) coming from the land
"offshore winds"
(of winds) coming from the sea toward the land
"an inshore breeze"; "an onshore gale"; "sheltered from seaward winds"
directed or situated away from inland regions and toward the sea or coast
"from the hill he took a seaward course"; "on the seaward side of the road"
is similar to
located on or near or bordering on a coast
"coastal marshes"; "coastal waters"; "the Atlantic coastal plain"