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Marine Day

A day to give thanks for the ocean's bounty and pray for the prosperity of maritime Japan

Beautiful sea of Japan
Photo by Ippei & Janine Naoi / CC BY 2.0

Umi no Hi (Marine Day) is a national holiday currently celebrated on the third Monday of July. Its purpose is "to give thanks for the ocean's bounty and pray for the prosperity of maritime Japan."

Origins and the Happy Monday System

Japan is an island nation whose history, economy, and culture are deeply tied to the sea. The holiday was established in 1996 to recognize this profound connection. Originally celebrated on July 20th, it commemorated the day in 1876 when Emperor Meiji safely returned to Yokohama Port from a sea voyage to the Tohoku region.

In 2003, the Happy Monday System moved the holiday to the third Monday of July to create a three-day weekend, kicking off the summer beach season.

Events and Significance

Marine Day is marked by various ocean-related events, water sports, and beach cleanups across the country. It serves as an opportunity to raise awareness about marine conservation and the importance of protecting the oceans for future generations.