How to get to Karatsu
Fukuoka and Karatsu are connected with each other by direct trains along the JR Chikuhi Line from Meinohama Station. Some trains along the Fukuoka subway line run directly all the way from Fukuoka Airport via Hakata Station, Tenjin Station and Meinohama to Karatsu. The one way ride from Hakata Station to Karatsu Station takes about 90 minutes and costs 1140 yen. The Japan Rail Pass is valid between Meinohama Station and Karatsu, but not on the subway line section east of Meinohama. Rail pass holders will have to pay an additional 300 yen from Hakata Station.
How to get around central Karatsu
Central Karatsu has two railway stations: Karatsu Station and Nishi-Karatsu Station. Karatsu Station is the larger and more central among the two. The city's bus network hub is Karatsu Bus Center, also known as Oteguchi (大手口) bus stop, which is a five minute walk north of Karatsu Station. Many of the bus lines also stop at Nishi-Karatsu Station.
While the Karatsu-yaki Gallery and Karatsu Hikiyama Exhibition Hall are within walking distance of Karatsu Station, buses provide access to the more distant sights except for Mount Kagamiyama which can only be accessed by taxi or rental car.
How to get to and around the Higashi Matsuura Peninsula
One or two buses per hour connect the Karatsu Bus Center with Yobuko (30 minutes, 750 yen one way, 1-2 buses/hour), the site of the morning market and departure point of the Nanatsugama cruises. From Yobuko, separate buses run to the Nagoya Castle Ruins about every other hour (12 minutes, 240 yen one way, get off at Nagoyajō Hakubutsukan Iriguchi, 名護屋城博物館入口). There are also a few direct buses between the Karatsu Bus Center and the Nagoya Castle Ruins, but they are very infrequent. All buses between Karatsu and the peninsula also stop at Nishi-Karatsu Station.
A rental car is a good, alternative choice for exploring the Higashi Matsuura Peninsula. Several rental outlets are located around Karatsu Station and central Karatsu.