Ito Onsen — relief & relaxation | Compare & book inns

Overview

Ito Onsen has a long history, with legends tracing its discovery to the Heian period (794-1185). It is a distinguished hot spring area with records of its waters being presented to the Tokugawa shoguns during the Edo period. Today, it boasts one of the largest outputs of hot water in Japan, at about 34,000 liters per minute, with steam visibly rising throughout the city.

A key feature of Ito is its mild climate, nestled between the sea and mountains. The waters are primarily gentle Simple and Chloride springs, making them suitable for everyone. The abundant, gentle waters are perfect for soothing daily fatigue and promoting a sense of deep relaxation.

Key Spring Types and Benefits

The main types are Simple springs (Tanjun-onsen), which are mild on the skin, and Chloride springs (Enkabutsu-sen), where salt content coats the skin to enhance heat retention. This restorative warmth helps you stay warm long after bathing. Many sources are a blend of multiple spring types, offering a diverse bathing experience.

• Sensitivity to coldThis common issue is often related to poor circulation, which the onsen's thermal effects can help improve. The heat-retaining properties of chloride springs provide a deep, lasting warmth that may alleviate a chronic tendency to feel cold.
• Poor peripheral circulation
• CutsThe warming properties of the spring water can improve blood circulation, which may support the body's natural healing process for minor abrasions. The gentle, low-irritant quality of simple hot springs is also suitable for delicate skin.
• Dry skinThe simple hot springs common in Ito are known for being gentle and having a moisturizing effect on the skin. Furthermore, the mineral film left by chloride springs can help prevent moisture from evaporating, potentially easing dryness.
• Autonomic instabilitySoaking in the warm, gentle waters provides a relaxing experience that can help calm the nervous system. This soothing effect may help balance the autonomic functions that regulate processes like heart rate and digestion, promoting overall stability.
• InsomniaThe relaxing effect of a warm bath can help ease physical and mental tension before bedtime. By warming the body and then allowing it to cool naturally, the hot spring may help signal to your body that it is time to rest, promoting a smoother transition to sleep.
• Rheumatoid arthritis

Water Characteristics and Best Season to Visit

Thanks to the immense volume of water, many ryokans and day-use onsen facilities offer gensen kakenagashi (water flowing directly from the source). Temperatures range widely from 25°C to 68°C. The water is typically clear, colorless, and odorless with a soft feel, making it ideal for long, relaxing soaks.

The mild climate makes Ito a pleasant destination year-round. Winter is excellent for savoring fresh seafood, while summer is the best time to enjoy events like the Anjin Festival fireworks and swimming at the beach.

Access

Nearby Sightseeing & Local Cuisine

• Mt. Omuro: Take a chairlift to the summit for a 360-degree panoramic view.
• Jogasaki Coast: A dramatic coastline of volcanic cliffs with a thrilling suspension bridge.
• Izu Shaboten Zoo: A popular theme park where you can get close to various animals.
• Tokai-kan: A beautiful wooden former ryokan from the early Showa era, now a cultural facility.
• Ito Orange Beach: A popular swimming beach easily accessible from the city center.
• Simmered Alfonsino (Kinmedai no Nitsuke): A signature Izu dish of premium fish simmered in a sweet and savory sauce.
• Dried Horse Mackerel (Aji no Himono): A local specialty made from fresh mackerel from the port town.
• Guri-cha Tea: A unique type of green tea produced in the Ito area with a distinct manufacturing process.