Measures to assure safe navigation during the peak season of drift-net fishing in the Seto Inland Sea The drift-net fishing season will start from 20 April 2020 throughout the Seto Inland Sea in Japan. Licensed Inlandsea Pilots' Association intends to implement safety measures in an effort to assure safe navigation. We attach herewith a free translation of “Request for Cooperation” letter from the Pilots' Association.