Ota (太田) is a city in Gunma.
Ota is located on the Tobu's Isesaki Line.
It is approximately 80 kilometers from Tokyo and 30 kilometers from Maebashi, the capital of Gunma Prefecture.
Direct Ryomo limited express trains run from Asakusa station in Tokyo. Services depart every 30 minutes during the mornings and evenings, and every hour during middays. The trip to Ota takes 70 minutes at a cost of ¥2030. Local Tobu trains, requiring a few transfers, will get you to Ota in about 2 1/4 hours for only ¥1030.
From Narita airport, Ota is most easily accessed using the Maple Bus Liner leaving almost every hour. The total trip lasts roughly 3 hours at a cost of 4300 yen.
Gunma is known for having the highest ratio of registered vehicles per population among Japan's prefectures and that is especially true of Ota, the home of Subaru Motors. There are few stations and buses tend to only run on main thoroughfares. Renting a vehicle is the most logical option for those staying outside of central Ota. Toyota Rent-a-car has two locations in the vicinity of the station and various sizes of vehicles are available for rent.
The south side of Ota Station features various drinking establishments, as well as the largest hostess bar district in Northern Kanto. While for all intents and purposes, a great many of the hostess bars are "Japanese Only", some establishments (particularly those staffed by Filipinas) do occasionally welcome non-Japanese. You can expect to spend roughly 4000 to 5000 per hour including drinks at most of the lower priced clubs. That being said, many such establishments may pad the bill and precaution is necessary whenever frequenting these locations.