A massive amount of pumice stone that has drifted ashore in Okinawa Prefecture has been causing headaches for local officials, but geologists are seeing it as a great opportunity to learn more about Mother Nature.

At Okinawa Prefectural Museum and Art Museum, researchers are already starting to gather the stones that have drifted onshore throughout Okinawa, noting the date and place where they were found.

For Ken Usami, one of the curators at the facility, it is a reminder of when he gathered pumice stones on Aka Island, part of the Kerama islands group, in 2017 as part of his research.