Hwy 101 mile marker 65d.
Clay Myers State Natural Area is on the Sand Lake Recreation Area, which is an estuary of the ocean. This inlet is characterized by exceptionally flat land - you can literally watch the waterline move as the tide goes in and out. The ocean itself is visible through a slot in two narrow ridges facing each other.
Unfortunately, there is an RV area nearby, so you will also hear the roar of engines along with the roar of the ocean.

A view	Here's a view looking toward the ocean