A team of international researchers, led by University of Haifa’s Dr. Aviad Scheinin, has documented the longest journey of a sperm whale to date. The researchers provided evidence of at least one immature male whale swimming eastward, some 2,800km (1,740 miles) of the Mediterranean Sea.
https://www.jns.org/haifa-u-researcher-documents-longest-journey-of-sperm-whale-in-mediterranean/