
Guide
Numazu Port Large Observation Water Gate Byuo
8 min readOverview and Attractions
Located in Numazu Port, the Large Observation Water Gate 'Byuo' serves a dual purpose: a functional sea gate to prevent tsunami damage and a scenic observation facility for visitors. From the observation corridor situated approximately 30 meters above ground, you can enjoy a breathtaking 360-degree panoramic view of the surrounding landscape. The facility features various exhibits related to the sea and visually engaging areas designed to captivate visitors.
History and Cultural Background
This facility was constructed with the critical function of protecting the area from tsunamis caused by earthquakes. It is equipped with a system that automatically closes the water gate if a seismograph detects specific thresholds. The name 'Byuo' is a creative combination of the English word 'view' and the Japanese word 'uo' (meaning fish), reflecting its identity. Inside, visitors can learn about the history of Numazu Port and the development of the local fishing industry through detailed exhibits.

Key Highlights
The facility offers several unique exhibition areas. One of the most popular is the floor area covered with graphic sheets that create the sensation of looking directly into the deep sea from above. Other areas feature deep-sea fish themes on the walls and inside the elevators. Additionally, there are zones with panels explaining the history of Numazu and the mechanics of the water gate, including footage of the gate opening and closing. You can also find maps and counter tables that introduce the local culture and scenery.
Seasonal and Time-Based Recommendations
During the day, you can enjoy the bright, clear views of the ocean and the surrounding coastline. At night, the facility features a lighting system for the floor, offering a completely different atmosphere than the daytime. Please note that operating hours may be shortened or the facility may close temporarily due to weather conditions or emergency alerts.
Experiences and Activities
In the observation corridor, you can relax while gazing at the vast landscape. The trick art area provides a perfect spot for fun photography using clever wall designs. Throughout the facility, you can engage with the history and culture of Numazu through various panels. There are also counter tables available where you can take a break while enjoying the view.
Surrounding Area
The area around Numazu Port is a vibrant hub for seafood and local food culture. Visitors can enjoy exploring the nearby streets to experience the local maritime atmosphere and history.
Essentials and Etiquette
While the facility includes elevator access to the observation corridor, we recommend wearing comfortable clothing suitable for sightseeing. Please check the following details regarding payments and usage:
- Payment: Primarily cash-based. Please carry Japanese Yen.
- English Support: Please check on-site for the availability of English signage or assistance.
- Reservations: No advance booking is required. However, the facility may close or change hours due to maintenance or weather alerts.
- Photography: Photography is permitted in certain areas, such as the trick art zone.
- Accessibility: The facility is wheelchair accessible via designated entrances.
- Important Note: On Thursdays, the facility closes early at 14:00. Please plan your visit accordingly.