Hundreds of people formed a line across Tybee Island’s beach stretching as far as the eye could see Saturday, as a part of the worldwide Hands Across the Sand protest against offshore drilling. The protests come during the aftermath of the ongoing Deepwater Horizon oil spill in the Gulf of Mexico, which David Rauschkold, founder of Hands Across the SandRauschkold, said is a wakeup call. Dr. David Seaman, professor of French at Georgia Southern University, assigned participation or observation of the protest to his international studies class.