Visiting Arai: Planning Your Trip

Arai, between Lake Hamana and the Pacific

Arai, now part of the city of Kosai in Shizuoka Prefecture, lies on the western shore of Lake Hamana, near its outlet to the Pacific Ocean. People come here less for the bustle of a major city than for a quiet stop connected with the history of Japan’s roads, waterside scenery, and the life of a small regional town. Its location makes it an interesting base between Hamamatsu and the Atsumi Peninsula, or a pause on a rail journey through central Japan.

The area is best known for the former Arai Checkpoint, a remnant of the Edo period. The contrast between this heritage, the lake shores, and the region’s contemporary activities makes for a pleasant pace: a historical walk in the morning, a fish meal, then a visit to the waterfront or nearby small towns. Arai suits travellers who enjoy places on a human scale and want to venture beyond itineraries focused on major cities.

Allow at least one day to make the most of your stop, and longer if you want to explore the area around Lake Hamana. Distances and connections deserve careful planning, as attractions are spread out and services are less frequent than in Tokyo or Osaka. A stay combining trains with local transport can work without a car, while a rental car offers more freedom to reach the shores, villages, and more distant viewpoints.

Places to see in Arai

The main historical landmark is the Arai Checkpoint, or Arai Sekisho, one of the few former Edo-period checkpoints still preserved in Japan. It monitored travel along the Tōkaidō, the major route connecting Edo with Kyoto. A visit helps explain how the authorities inspected travellers and goods, and why this transit area was strategically important. The restored buildings and exhibition spaces make the history more tangible than a brief stop in front of a monument.

The associated museum presents exhibits on the checkpoint, the road, and travellers’ lives. Take time to look at the wooden architecture and the arrangement of the rooms: the site is best enjoyed by noticing the details rather than expecting a vast collection. The information may be easier to follow if you familiarise yourself with a few historical basics beforehand, especially the system of major roads and the restrictions placed on travel during the Edo period.

Lake Hamana is the other major attraction, with its shifting horizons, ports, and shores that can vary considerably from one area to another. Nearby Bentenjima is known for its large red torii gate rising from the water, a photogenic subject that is especially popular as the light fades. The scenery depends on the tides, weather, and season, so allow time for a walk rather than counting on a quick photo alone. Visitors interested in fishing, shellfish farming, or coastal scenery can also get a sense of the local economy in the region.

Different atmospheres around town

Central Arai is the most convenient choice for visiting the historic checkpoint while keeping shops and transport within easy reach. Its atmosphere is that of an active regional town, without a large concentration of nightlife attractions. It works well for a day planned around the heritage site on foot, rounded off with a local meal. Before choosing accommodation, check its actual distance from the station or historic site: in a spread-out municipality, two addresses described as being in Arai can involve very different journeys.

The area around Bentenjima and the shore of Lake Hamana appeal more to travellers looking for waterside views, walks, and a resort-like atmosphere. There are open landscapes and access to lake activities, but dining options and connections may be more limited depending on the location and time of day. This area is pleasant if you want a quiet stay with scenic views, or if you plan to combine Arai with a night near the lake.

Hamamatsu, the larger city on the other side of the lake, has more restaurants, shops, and rail connections. Staying there may be a good choice if you want a wider range of hotels or plan to visit several places in the region, but you will need to allow time for trips to Arai. By contrast, staying in the Arai area makes for a quieter visit closer to the heritage site. Compare locations according to your priorities: history, scenery, city life, or ease of transport.

Where to stay for your itinerary

For a visit focused on the former checkpoint, look for accommodation in the Arai area or near a station with easy access to the site. A small inn or practical hotel may be enough for one night, especially if you arrive by train and leave the next day. Check walking access, nearby meal options, and accepted check-in times: in less touristy towns, services may not be as extensive as in major centres.

Travellers who prioritise relaxing by the water can compare accommodation around Lake Hamana. Ryokan-style properties or hotels with baths and lake views suit a slower getaway, while simpler options may be a better fit for a journey with several stops. Amenities vary by property and season; read carefully to see what is included, especially meals, bath access, and cancellation terms, before booking.

Hamamatsu is a more practical base for those who want a wider choice of hotels, restaurants, and transport. It may also suit families or travellers who prefer to return to a lively city in the evening. The trade-off is that you will need to arrange the journey to Arai and avoid underestimating the time needed to travel around the lake. Compare maps, connections, and timetables when choosing, rather than relying only on the locality name shown in a listing.

Flavours of the lake and Shizuoka cuisine

Lake Hamana’s best-known speciality is eel, often grilled and served over rice with a sweet sauce, following a well-established local tradition. It is a hearty dish suited to a memorable lunch or dinner. Menus and cooking styles differ from one establishment to another: if you are looking for a particular experience, check descriptions and service hours rather than assuming every restaurant along the shore offers the same thing.

The lake is also associated with clams and other seafood, while the nearby coast supplies fish and seafood according to the season. At neighbourhood Japanese restaurants, daily set meals can be a good way to try these ingredients without putting together a complicated meal. Travellers looking for more variety will find a wider range of cuisines and dining styles in Hamamatsu, from quick meals to more formal restaurants.

When choosing where to eat in Arai, favour a place whose menu clearly describes its specialities and portions, and consider how far it is from transport if you are not driving. In smaller towns, some establishments close between meal services or do not open every day. Keep a backup option near your accommodation or the station, especially after an outing by the water. A little flexibility makes it easier to enjoy local food without turning a meal into a logistical challenge.

Getting to Arai and getting around

The train is a natural option for reaching the region. The Tōkaidō Main Line serves the area, and travellers coming from Tokyo, Nagoya, or Osaka can plan their journey by combining faster trains with local services, depending on their route. Arai-machi Station is a useful landmark for the area, but the network and exact connections depend on your starting point. Check trains and transfer times when planning your trip, especially if you expect to arrive late.

For air travel, airports in the Nagoya or Shizuoka area may fit into a wider itinerary, but neither makes Arai directly accessible from the terminal. You will need to combine train, bus, or car travel, and compare the whole journey rather than just flight time. From Chubu Centrair Airport, the route generally involves taking rail services towards Nagoya and then the Tōkaidō Line; connections west from Shizuoka also require planning. A shuttle or private transfer may be convenient with luggage, but compare its drop-off point and flexibility with public transport.

Once there, walking is enough for some sites near the centre, but the lakeshores and attractions are spread out. Local trains and buses can help, with service frequency varying by area and season. A rental car makes it easier to stop at several points along the shore and explore the surrounding area; bear in mind, however, parking and driving on local roads. If you are travelling without a car, group visits by area and check return connections before setting out.

Experiences and excursions around the lake

Set aside part of the day to explore the checkpoint and take a walk through the historic area. A guided tour, when available, can bring the travel rules of the Edo period and Arai’s place on the Tōkaidō to life. For a self-guided outing, pair the site with a regional meal, then head to a lakeshore or Bentenjima. This combination balances heritage and scenery without adding too many transfers.

Lake Hamana is suited to walks, boat trips, and other water activities offered locally, depending on the season and conditions. Options and availability change, so check booking information when planning, and confirm the departure point and the activity’s actual duration. Photography enthusiasts may want to spend the end of the day around Bentenjima, while travellers who prefer a more active visit can look for cycling routes or organised excursions in the area.

Hamamatsu is a separate excursion, not a neighbourhood of Arai. The city is known for its castle, cultural venues, and connection with the manufacture of musical instruments; it offers a more urban atmosphere and complements a stop by the lake. More broadly, trips to other destinations in Shizuoka or to the Atsumi Peninsula require a day of their own. Avoid adding them to an already busy schedule without checking travel times, as regional distances may look modest on a map while still requiring several connections.

Plan a relaxed stay

A well-balanced day could begin at the Arai Checkpoint and its museum, continue with lunch featuring eel or lake produce, and end on the shores of Hamana. If you are arriving from far away, staying overnight avoids squeezing visits between trains. With two days, you can spend the first exploring Arai and Bentenjima, then visit Hamamatsu or another part of the lake the next day. Leave some room for connections and changes in the weather.

Spring and autumn are often pleasant for walking, thanks to milder temperatures. Summer brings a holiday atmosphere to the waterfront, but heat and humidity can make long walks less comfortable. In winter, cooler days can sometimes bring clear light over the lake, though you will need suitable clothing. Conditions, visitor numbers, and seasonal activities vary; check local information for the sites and excursions that matter most to you.

Book the elements that shape your journey first: long-distance tickets if travelling during a busy period, accommodation if you want a night by the water, and activities with limited capacity, if applicable. Compare hotels by transport access, meals, and cancellation policy, not just by category. If you are considering a rental car, check that the pick-up location matches your arrival point and that your itinerary genuinely warrants driving. For a simpler visit, trains and a schedule grouped by area may be enough.

Keep your journey going

Discover more and plan your next stop with our travel guides.

All our guides and tips for Arai →

Explore nearby destinations

More destinations in the country

Written with AI without consulting external websites. Information is not verified in real time. Check current prices, availability and conditions with the provider before booking.

How this guide was produced