Salt Point State Park, California

These honeycomb-like formations are called tafoni (Italian for caves) and are caused by salt weathering and a recurrence of wetting and drying over a long period of time.

Vila Nove de Milfontes, Portugal

Bowling Ball Beach, California

These mysterious boulders are each about a meter in diameter.

Pescadero, California

Queen's Bath, Kauai

Ke'e Beach Kauai

La Jolla, California

La Jolla, California

La Jolla, California

Schooner Gulch, California

Giant's Causeway, Ireland

These basalt columns were formed 50-60 million years ago, and is essentially, dried lava.

Warwariki Beach, New Zealand

This is the most beautiful beach I've ever been to.  Located on the northern-most tip of the south island, this beach is *wild*.  It was windy as all get out every time I went.  The hike to the beach is spectacular, with rolling green hills and sand dunes.