Okishima in Ōmihachiman, Shiga Prefecture, is the largest island in Lake Biwa and an inhabited island where people still live today.
There is no bridge, so visitors cross from Horikiri Port on the Okishima commuter boat.
The island brings together a fishing port, homes, a school, temples and shrines, and narrow lanes. Rather than a townscape created as a tourist attraction, it offers a glimpse of everyday life sustained alongside Lake Biwa.
What Is Okishima? An Inhabited Island Where Life Continues on Lake Biwa
Okishima’s appeal lies not only in its lake scenery but also in the way of life built on fishing and boat transport that continues today.
Visitors should remember that they are entering the islanders’ living space and walk quietly and respectfully.
The Largest Island in Lake Biwa
Floating offshore from Ōmihachiman, Okishima is the largest island in Lake Biwa.
It is said to be the only inhabited island in a freshwater lake in Japan and is extremely rare even worldwide.
Look beyond the island’s size and notice its living culture, where lake transport, fishing, and community are closely intertwined.
Boats Support Commuting and School Travel
Boats are the means of transportation between the island and the mainland. The Okishima boat is not a sightseeing vessel but a lifeline also used by islanders for commuting to work and school.
When boarding, give priority to local residents and avoid taking up aisles or seats with large luggage.
Operating conditions may change because of bad weather or other factors, so check service information on the day of your visit.
Fishing and Lake-Fish Culture
Many Okishima residents are involved in fishing, and various methods have been passed down for catching Lake Biwa species such as ayu, wakasagi smelt, sujiebi shrimp, nigorobuna crucian carp, and Biwa trout.
The fishing boats and gear lined up at the port are not displays for photographs but important tools used for work.
Do not enter work areas or touch nets or boats; observe the scenery of daily life from a distance.
How to Use the Okishima Boat: An Approximately 10-Minute Trip from Horikiri Port
The usual way to reach Okishima is to take the Okishima boat, operated by the residents’ association, from Horikiri Port.
Services are limited, so decide on your return sailing as well as your outbound trip before crossing to the island.
Board the Scheduled Boat at Horikiri Port
The one-way trip from Horikiri Port to Okishima takes about 10 minutes, and the adult fare is 500 yen.
The boat has a capacity of 50 passengers and is equipped for barrier-free access and air conditioning, but there are no toilets aboard or at Horikiri Port.
Follow local signs for fare payment and the boarding point, and arrive at the port with time to spare rather than just before departure.
Check the Timetable in Both Directions
Several services run from morning to night, but some early-morning sailings do not operate on Sundays and public holidays.
Even daytime services convenient for travelers can be widely spaced, so beginning your walk without considering when to return to the port may result in a long wait.
Times may be revised, so use the timetable for the date of your visit.
Etiquette on a Community Lifeline
The Okishima boat supports islanders’ daily lives and is not a cruise solely for tourists.
At the boarding point, wait for passengers to disembark first, keep luggage compact, and refrain from loud conversation aboard.
When taking photos at the port or on the boat, avoid photographing crew members or other passengers’ faces and work at close range without permission.
Okishima Highlights: Walk Through the Fishing Port, Temples, Shrines, and Museum
A visit to Okishima involves walking from the port through the settlement’s lanes and linking temples, shrines, the museum, and lakeside views.
Because the roads are narrow, do not walk while looking only at a map; watch for bicycles, work vehicles, and local residents.
Fishing Port and Lakeside Settlement Scenery
After disembarking, you will see a port lined with fishing boats and a distinctly Okishima landscape of homes extending along the shore.
Entrances, laundry areas, and work sheds are residents’ private spaces and must not be entered for photographs.
From public roads, observe the relationship between lake and settlement and experience the sounds of daily life and the movement of the fishing port as part of the island’s rhythm.
Okitsushima Shrine and the Island’s History
Okitsushima Shrine on the island has long been worshipped in connection with safe navigation on Lake Biwa.
Before permanent settlement, Okishima is said to have been revered as a sacred island.
Worship quietly in the grounds, and if festival preparations or community events are underway, give priority to residents’ use of the space.
Saifuku-ji and Traditions of Rennyo Shōnin
Saifuku-ji is associated with Rennyo Shōnin, who is said to have reached Okishima after taking refuge from a storm on Lake Biwa.
Temple treasures handed down at Saifuku-ji include the “Torafu no Myōgō” and the “Shōshinge,” both said to be in Rennyo Shōnin’s own hand.
This is a place to learn that the island’s faith is connected not only with fishing and safe navigation but also with the history of Jōdo Shinshū Buddhism.
Conditions for viewing temple treasures and entering the hall are not always the same, so do not enter buildings without permission and follow local guidance.
Learn About Island Life at the Okishima Museum
At the Okishima Museum, exhibits of fishing tools and life in the Shōwa period offer insight into island life.
Visitors need to confirm opening days and reservation requirements.
If you want to visit the museum, contact the Okishima Fisheries Cooperative in advance.
How to Walk Around the Island: Explore Residential Roads Quietly
Okishima has narrow lanes and steps, and simply walking through the lakeside settlement is part of the travel experience.
However, many lanes are everyday routes for islanders, not promenades built for tourists.
Do Not Enter Private Property
Never enter residential gardens, piers, fishing-gear storage areas, or working areas around boat landings without permission.
Even if a route looks like a road on a map, it may lead into private residential property; turn back wherever you are unsure.
Ask permission before photographing residents, and do not take photos of children or people at work without consent.
Prepare for Waste and Food
Food, drink, and retail facilities on the island have particular opening days and reservation requirements and may not be available on the day of your visit.
Bring any drinks you need in advance and take all containers and packaging home rather than leaving them on the island.
If you want a boxed meal or a dish made with lake fish, check reservation conditions with an island business.
Walk at a Quiet Pace
Do not spread across narrow roads. If bicycles, carts, or residents need to pass, stop and give way.
Avoid loud voices or music near homes, and be especially considerate of the community’s quiet in the early morning and evening.
Plan your walking area and return boat time so you do not need to rush through the lanes.
Recommended Route: Return to the Port Based on the Boat Timetable
On Okishima, planning a route that reliably gets you back to the return boat is more important than the number of places you see.
One option is to visit places farther from the port first and explore the port area on the way back.
Confirm the Return Sailing After Arrival
As soon as you disembark, first confirm the return time and boarding point.
Check for changes caused by weather or local notices and choose a sailing that lets you return to the port with time to spare.
If you have a meal or museum reservation, adjust the start time around the boat schedule.
Organize Highlights by Their Role
Organizing the island’s main sights makes it easier to allocate your limited time.
| Place | Theme | Consideration |
|---|---|---|
| Fishing port and lakeshore | Fishing and scenery | Do not disrupt work |
| Temples and shrines | Island faith | Worship quietly |
| Museum | History of island life | Check opening days |
Rather than rushing to see everything, choose the theme that interests you most—fishing, faith, or living culture—to experience Okishima at a relaxed pace.
Wait for the Boat Near the Port
Return before the departure time and wait where you will not obstruct the boarding line or islanders transporting luggage.
There is no alternative transport such as a taxi if you miss the boat, so you must wait for the next service.
For visits after dusk, check daylight and the final sailing, and do not walk through residential areas at night for sightseeing.
Access to Horikiri Port: Use the Bus or Designated Parking
Horikiri Port, the departure point for the Okishima boat, can be reached by bus from Ōmihachiman Station or by car using the designated parking area.
Do not park without permission on roads around the port; use the designated visitor spaces.
Local Bus from Ōmihachiman Station
The recommended route is to take an Ōmi Railway bus bound for Kyūkamura from the north exit of JR Ōmihachiman Station and get off at Horikiri Port.
The ride takes about 35 minutes, but services are infrequent and connections with the boat may be inconvenient.
Confirm operating days and times with the transport operator, and plan the outbound and return bus and boat journeys together.
Cars Must Use the Visitor Parking Area
If traveling by car, use the visitor parking area near Horikiri Port and walk to the port.
Areas beside the port and surrounding roads are not free-parking zones, and police enforcement is also noted.
Check the parking location on the guidance page in advance and allow enough walking time to reach the boat before departure.
Summary: Discover Life Alongside Lake Biwa on Okishima
Okishima is an inhabited island where a way of life founded on boat transport and fishing continues in close connection with Lake Biwa.
Walking through the fishing port, Okitsushima Shrine, Saifuku-ji, and the Okishima Museum reveals not only lake scenery but also the island’s faith and living culture.
Check round-trip transport on the Okishima boat and to Horikiri Port, and visit this living island quietly while respecting private property, photography rules, waste disposal, and residents’ right of way.
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