midshore
/ˌmɪdˈʃɔː/adjective
1Situated or occurring in the middle of a shore (viewed along a line from the sea to the land).
2 Fishing (chiefly Canadian ). Of or designating a fishing ground situated between the inshore and offshore areas of a particular stretch of water.
Origin
1950s; earliest use found in Journal of Ecology. From mid + shore.