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Places of interest #3 in Numazu

Numazu Port Observatory Water Gate

4.1 · 2,381 reviews
Industrial and panoramic
Numazu Port Observatory Water Gate, Senbon-1905-27 Hon, Numazu, Shizuoka 410-0867, Japan
Interesting facts
1

The gate weighs approximately 4,066 tons.

2

The structure is designed to withstand a magnitude 8.0 earthquake.

3

The two gate leaves each measure 9.3 meters in height and 40 meters in width.

4

The name 'View-O' is a wordplay combining 'View' and the Japanese pronunciation of the number '0' (o), referencing the gate's potential to stop tsunami waves at zero.

5

The walkway connecting the towers is designed to remain above the water level even during high-tide emergencies.

6

It is one of the largest floodgates of its kind in Japan.

7

The facility automatically closes in the event of a Tsunami Warning issued by the Japan Meteorological Agency.

Overview

The Numazu Port Observatory Water Gate, known locally as View-O, is a massive tsunami floodgate that serves as an observation deck offering 360-degree views of Suruga Bay and Mount Fuji. Standing 40 meters tall, the structure features two heavy-duty steel gates that can be lowered in minutes to seal the port from high-tide surges. Visitors access the observation level via elevators located in the two supporting towers connected by a pedestrian walkway 30 meters above the water. The gate is part of Numazu Port's comprehensive disaster prevention infrastructure. From the top, the perspective includes the Izu Peninsula and the harbor's active fishing fleet. The structure is illuminated at night with changing LED color schemes.

Photo spot

From the pedestrian walkway looking north toward Mount Fuji, or from the harbor quay looking up at the structure's full height.

Insider tips

Check the local weather forecast specifically for visibility, as Mount Fuji is often obscured by clouds.

Visit during the evening to see the structure's LED light illumination against the dark bay.

The observation deck provides excellent wind protection, making it a comfortable viewing spot even on breezy days.

What to avoid

Don't limit your visit to the gate; many tourists miss the surrounding fresh seafood restaurants within the port complex.

Good to know

May close temporarily during severe weather alerts or for scheduled structural maintenance.

Plan your visit
Typical visit
30-45 minutes
Best time to visit
Late autumn or winter mornings for the highest probability of clear visibility of Mount Fuji.
Address
Numazu Port Observatory Water Gate, Senbon-1905-27 Hon, Numazu, Shizuoka 410-0867, Japan
Website
35.081, 138.854
Get directions
Details
Structure height40 meters
Primary functionTsunami and high-tide surge prevention

Frequently asked

Plan for about 30-45 minutes to see the highlights.

The best time to visit is Late autumn or winter mornings for the highest probability of clear visibility of Mount Fuji..

From the pedestrian walkway looking north toward Mount Fuji, or from the harbor quay looking up at the structure's full height.

Close by you'll find Numazu Deep Sea Aquarium, ちどり沼津港遊覧クルーズ(千鳥観光汽船), Numazu Imperial Villa Memorial Park.