Sunshine flooded the waters separating California's Catalina Island from Channel Islands Harbor. Capt. Tom Petersen, skipper of the Sea Ray 55 Sundancer Valkyrie, was leading a small flotilla when an unexpected fog bank quashed visibility. Valkyrie carries the latest Raymarine kit (Petersen is a Raymarine Pro Ambassador), including a 12 kW, 6-foot, open-array, high-definition radar, but Petersen's companions weren't electronically fortified. "I sat behind the other boats, watching them on my radar and maintaining radio contact," Petersen said. One boat didn't have radar or autopilot, and the skipper was ignoring his compass. "I told him to keep [maintaining] a certain angle, but he picked up speed and went in the wrong direction. Then, he got scared." Staying calm, Petersen advised the panicked skipper to cut his speed, and he used his radar to wend Valkyrie alongside. "Without radar," Petersen said, "this would have been dangerous."