At the Source of the "Hot Sea"
The history of Atami is rooted in antiquity, and the city's name itself, which literally translates from Japanese as "hot sea," reflects its unique geological nature. According to legend, hot springs used to gush directly from the seabed, heating the bay water so much that it harmed the local marine life.
The first documentary mentions of the settlement and its healing waters are found in historical chronicles from the Nara period (710–794 AD). Legend has it that in the 8th century, a Buddhist monk named Mangan Shonin took pity on the fishermen whose nets were suffering from the boiling water. He offered prayers, after which the spring moved to the land, becoming accessible to the people.
Key Factors of Development
The transformation of a small coastal village into a significant center was driven by a combination of factors:
- Geographic Location: Situated on the edge of a volcanic caldera by Sagami Bay, the region was provided with an inexhaustible supply of thermal waters. Proximity to the historical Tokaido road made Atami a convenient stopover for travelers.
- Political Patronage: The shogun Minamoto no Yoritomo (12th century) played a vital role in the city's history, visiting local shrines and springs to regain strength before battles. Later, during the Edo period, the great unifier of Japan, Tokugawa Ieyasu, grew so fond of the local waters that he ordered them to be delivered in barrels directly to his castle in Edo (present-day Tokyo).
Early Culture and Economy
The economy of early Atami was built not only on fishing but also on the emerging culture of wellness. The city became one of Japan's first examples of a resort focused on balneotherapy (toji).
Thanks to the patronage of the Tokugawa Shogunate, Atami gained status as an elite vacation spot for feudal lords and samurai. The tradition of "Oyu-kumi"—the ceremonial transport of hot water for rulers—contributed to the development of infrastructure and solidified the city's reputation as the region's premier health retreat, located at the gateway to the Izu Peninsula.