Nudokubiabu is a hidden spiritual site located on Irabu Island, northwest of Miyako Island. Tucked away in a sugarcane field, it is rarely visited and known only to a select few.

Features and Name Origin
The name “Nudokubiabu” comes from the Miyako dialect: “Nudokubi” means “throat,” and “Abu” refers to a vertical shaft or sinkhole. True to its name, Nudokubiabu is a deep and expansive limestone cave that extends far below the surface.

History and Usage
During wartime, this cave was used as an air-raid shelter. Inside, traces of old cooking stoves and other remnants can still be seen, offering a glimpse into its historical role.

Visiting Notes
Because the cave is located in the middle of a sugarcane field, access can be somewhat challenging. There is no parking available, so visitors should plan accordingly. As it is a quiet and sacred place, it’s important to be respectful and mindful of local customs and beliefs.

Location: 1229 Ikemazoe, Irabu, Miyakojima City, Okinawa Prefecture
Parking: None

Nudokubiabu is a special site where you can feel both the mystery of nature and the weight of history. Hidden among the sugarcane, this limestone cave invites you to explore the deep spiritual and natural heritage of Miyako Island.
