Munch your lunch while watching Douglas Dunn & Dancers at 55 Water Street, The Elevated Acre, a grassy rectangle, at 12:15, August 18 to 22. His site-specific work "In Formations" is a half-hour work. Open to the public. Come early, find a seat.

The Kenn Duncan retrospective of 400 photographs is on view at the NY Public Library for the Performing Arts at 65th Street, Lincoln Center, July 30 to October 25. The exhibit, called "Focus on 70s," includes photos of ballet artists, musical stars and the famous and infamous, such as Baryshnikov, rock legends and portraits covering his '60s to '80s 20-year career. His work appeared in fashion magazines as well. Duncan put his subjects as ease with his humor and patter, quick set-up of lighting and extensive knowledge of theater. If you have a favorite from that period, you'll find a portrait of that star in the exhibit.

The world of flamenco dance is besieged by undistinguished interpretations, as performed with noise and clatter. One of the great artists of this form, however, is Soledad Barrio, who has performed in New York City with and without a company for several years. She is deep in her interpretations, soul-searching, movingly quiet then explosive. "Noche Flamenca" includes several repertory works, that audiences now expect and her current work, "La Dama del Mar/The Lady from the Sea."

Flamenco's history dates back to the migration of Kathak dance in India, a form of percussive dance that is performed to stringed instruments with ankle bells, bare feet slapping on marble floors and elaborate gestures. A pair of heeled shoes were picked up along the way. Finally, settling as indigenous to Spain, where Barrio studied, the work is best seen in small restaurants and cafes in Madrid. The theater in St. Marks comes closest. Barrio's best partner was her husband until he had a back injury some years ago. Barrio dances nightly at Theater 80, 80 St. Marks, now until August 14, tickets required: 212-352-3101.