Let's observe and experience the creatures and environments unique to the natural sea.
Inside the facility, you can enjoy learning about fish and seaweed.

You can observe fish from the natural sea from various perspectives.
By "improving the environment of the sea", it is possible to make it easier to observe underwater conditions, and experience "sea education" where you can feel the "ecosystem" and "natural activities" of the natural sea.
As you observe the natural sea, you will be able to observe the creatures of summer in the summer and winter in the winter, and you will be able to feel the changes throughout the four seasons.
Furthermore, you can deeply understand the mechanism of the natural world such as "sea", "living creatures", and "ecosystem" through various prepared "programs" rather than just "seeing".

Area details


Fish deck

You can see the creatures of the sea by pulling up the rope with the mussel and the sea.



You can observe how various types of seaweed grow.


Plankton deck

You can observe various jellyfish and plankton in each season.


Guide deck

We carry out various experience programs to understand the mechanism of the natural world.


Submarine Research

You can observe the state of the natural sea that changes throughout the four seasons, fish fish, and the ecology of creatures that gather in the sea.

Umi Farm Initiatives


Improving the sea environment

Umi Farm will work on Yokohama Hakkeijima Sea Paradise, Central Bay to improve the environment and purify water, and carry out business to restore the original biota and ecosystem of Tokyo Bay.
A wide variety of sea creatures also inhabit the seas near us. We will incorporate learning elements such as actually observing the ecosystem of the marine creatures living in Tokyo Bay and what kind of creature there is, and explaining the mechanism that organisms are essential for seawater purification.
In addition, as part of environmental improvement, we will plant seaweed and harvest with our customers to learn what role plants in the sea play to improve the environment of the sea.


Blue carbon awareness

Absorption by marine organisms is called blue carbon as opposed to carbon dioxide absorption (green carbon) by forests. It was named in the 2009 United Nations Environmental Program (UNEP) report and pointed out its importance.
Of the 7.2 billion tons of CO2 emitted from the world per year, 2.2 billion tons are absorbed by the entire ocean. 900 million tons on land such as forests and 4.1 billion tons emitted to the atmosphere, 55% of carbon fixed in the natural world is estimated to be blue carbon. (From "UN Environmental Report")
At "Umi Farm" we will carry out blue carbon awareness activities in collaboration with Yokohama City. We will work together with citizens to nurture seaweeds that absorb CO2 in the sea, and through our own experience, we will provide "sea training" to experience the improvement of the sea environment and global warming countermeasures.

Reference: City of Yokohama press release