There are many synonyms that can be used to describe movement or position towards the sea. Some commonly used phrases include "seaward," "coastal," "oceanward," and "beachward." Others might say "out to sea," "tide-bound," or "shoreward." These phrases are all useful for describing movement or placement in relation to the sea, and can be used to add richness and variety to one's writing. Other related terms might include "maritime," "nautical," or "aquatic," which might be useful for describing aspects of the sea or ships that navigate it. Overall, there are many synonyms that can help to convey the sense of moving or being oriented towards the sea.