Ago Bay Pearl: The Sea Where the World's First Pearl Cultivation Was Born

Countless pearl cultivation rafts float quietly across an intricate maze of inlets. Ago Bay, on the southern edge of the Shima Peninsula in Mie Prefecture, is the sea that made Shima famous as a home of cultured pearls. Its calm, multi-island rias scenery and its glittering pearl story make a visit here a graceful and rewarding experience.

Highlights

Ago Bay is a rias inlet on the southern Shima Peninsula. Its calm, nutrient-rich waters are ideal for pearl cultivation. In 1893, Mikimoto Kokichi succeeded in the world's first pearl cultivation at Ojima (now Mikimoto Pearl Island) off Toba, and the technique spread across the Ago Bay area. Rafts still dot the bay today, and Shima is known as a home of pearls.

The greatest appeal of Ago Bay is the scenery of islands large and small among the cultivation rafts. From Yokoyama Observatory, at an elevation of about 140 meters, you can take in the whole bay with its islands and deeply indented coastline. Admission to the observatory is free, and an adjoining cafe lets you rest while enjoying the view.

Pearl-related experiences add to the charm. Nearby facilities let you open an Akoya oyster and take out a real pearl, and some shops will craft it into an accessory. At Mikimoto Pearl Island in Toba, you can watch ama diver demonstrations and learn the history of pearls.

Seasonal Enjoyment

Spring: Mild weather makes cruises and observatory views pleasant. Summer: The blue sea and green islands form a vivid contrast; prepare for strong sun. Autumn: Clear air offers long views, and the sunsets are especially beautiful. Winter: Fewer visitors mean quiet viewing, with the bay glowing at dusk.

Access and Essentials

• Base station: Kintetsu Kashikojima Station, reachable by Kintetsu Limited Express from Nagoya and Osaka.
• Bay cruise: The Kashikojima Espana Cruise from Kashikojima runs about 50 minutes; the ticket office is roughly a 2-minute walk from the station.
• Yokoyama Observatory: About a 10-minute taxi ride or 40-minute walk from Kintetsu Ugata Station. Admission is free.
• Parking: Available at the observatory and various facilities.

Practical Travel Notes

• Best season and time: For sunset, head to Yokoyama Observatory before dusk; daytime is ideal for a bay cruise.
• Time needed: The observatory takes 30 minutes to an hour, the cruise about 50 minutes. With a pearl-taking experience, a half to full day is plenty.
• Budget sense: Cruise fares are in the low thousands of yen for both adults and children; the observatory is free; pearl-taking experiences run from a few hundred to a few thousand yen depending on the facility.
• Nearby spots: Combine with Mikimoto Pearl Island in Toba, Ise Jingu, and fresh seafood at a Shima inn for a full itinerary.

A Word of Advice

Ago Bay reveals its charm through seeing, cruising, and experiencing. First grasp the whole scene from Yokoyama Observatory, then glide among the islands by cruise, and finally connect with the story through a pearl-taking experience. If a sunset is your goal, choosing a clear-weather day will boost your satisfaction.

📚 Sources

Information published by the Shima City Tourism Association and Mie tourism guidance, the official information of the Yokoyama Observatory and Ago Bay cruise operators, and the public information of Mikimoto Pearl Island are useful. Pearl-extraction experiences can be checked through each facility’s guidance.

Cruise timetables and experience fees can change. Fees, hours, and access may change, so please confirm with official sources before you set out.

Visitor Checklist

• Time needed: About 30 minutes to an hour at the Yokoyama Observatory and roughly 50 minutes for the cruise; combine with a pearl-extraction experience for a half to full day.
• What to bring: A hat and sun protection, as the observatory and cruise offer little shade; arrive before sunset if you are aiming for the evening view.
• Suggested route: First take in the whole of Ago Bay from the Yokoyama Observatory, then tour the islands on a cruise from Kashikojima, and touch the story with a pearl-extraction experience.