Seaward
Part of speech: noun
Definition: In the direction of the sea.
Coastal
Part of speech: adjective
Definition: relating to the coast; on or near the coast, as a coastal town, a coastal breeze
Example sentence: Maine is the largest producer of wild blueberries in the world. The woody plants occur naturally in the sandy gravel understory of Maine's coastal forests, where little else bothers even trying to grow.