An oil worker prepares floating barriers in the port of the Arenzano sea resort in Genoa, Italy, Sunday after the Cypriot-registered oil tanker Haven sank. The spill from the tanker is painting beaches black and spreading fear in the nation's riviera-resort area. "We are afraid of a black summer," said Giandomenico Oli-vieri, who works in the tourist promotion office of Celle Ligure, a seaside hamlet. Authorities estimate 15 million gallons of the tanker's 42 million gallons may have burned, with most of the rest remaining in the ship when it sank.