Lake Chūzenji, nicknamed the “Sea of Happiness,” sits beneath volcanic Mount Nantai in scenic Nikkō National Park. Born about 20,000 years ago when an eruption dammed the river, the lake now rewards visitors with mirror-like waters, sweeping mountain views and easy lakeside walks or boat rides—ideal for photography, seasonal foliage and quiet reflection.

Nearby Spots

Kegon Falls

Nikko Toshogu

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Railway Museum

Saitama Super Arena

Popular in Tokyo & Kanto

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