A kite surfer stranded on a California beach used rocks to spell “HELP,” leading to his rescue Sunday, officials said.

A private helicopter spotted the man on a beach south of Davenport Landing and called for what the sign made out of rocks asked —help.

Video of the rescue was posted to social media by the California Department of Forestry and Fire Protection’s San Mateo and Santa Cruz unit. The clip showed that the beach was at the base of a long a steep cliff.