01 / Checkpoint
Kawaguchi Guardhouse watched people,Funami Guardhouse watched cargo.

The Shonai domain set up five guardhouses on its borders. At Kiyokawa, the Kawaguchi Guardhouse watched people traveling to and from other domains, and the Funami Guardhouse watched cargo headed inland for smuggling. Both have been restored in Kiyokawa Historical Park.
- One of five border guardhouses of the Shonai domain
- Kawaguchi for people, Funami for cargo
- Restored in Kiyokawa Historical Park