The crew saw a pod of about four whales, including a calf, and had actually changed course slightly to give them a wide berth. At about 0715 local time, they were getting back on course when the calf swam down the port side of Mureadritta's XL. The mother, perhaps trying to protect the calf, or just to get back to it, rammed the starboard side, forward of the chainplate. The impact was felt and heard, rather than seen. The crewman on the port side only saw the dorsal fin of a pilot whale, which immediately dove under after striking the boat. They didn't see the whale again, but Nick said, "She probably had a good gash on the nose, or at least a pretty bad headache."