I cradle shells upon the shore, and hide strange creatures near my floor. With swaying seaweed and fish that roam, I am their vast and endless home.

Beneath the earth where sunlight dies, with stone for walls and barred confines. No open sky, no freedom near, a place of shadows, dread, and fear.

My first and last letter is a type of cow. My two middle letters is a state in USA. What am I?

In the cold, stormy night my gaze might save your life.

I rest between journeys, where tides know my name. Ships find their peace, yet none stay the same. I guard against storms, though I move no chain. What am I?