Red Bull cliff diving competition in Boston
Globe Staff Photo / David L. Ryan
Curve. Position. Velocity. Gravity. Energy.
Those are the words that describe the participation of the world's best high divers in the 2011 Red Bull Cliff Diving World Series. As part of a global tour, the competition was held Saturday in Boston at the Institute of Contemporary Art building on Fan Pier. Besides the United States, other countries on the tour include Chile, Mexico, Greece, France, Italy, and Ukraine. Take a look at photographs from Saturday's event and Friday's training in Boston.

