Umi no Hi, or Marine Day, is a Japanese public holiday celebrating the ocean and its importance to Japan as an island nation. The day encourages appreciation for the sea, maritime industries, coastal communities and marine environments. It is often associated with beach visits, aquariums, ocean-themed events and environmental awareness.

Event Suggestions:
• Create an ocean appreciation or marine conservation activity
• Explore Japan’s relationship with the sea and island geography
• Share Japanese summer traditions, seafood culture or coastal stories