Remains of northern battery (北部砲台跡)
Use of geocaching.com services is subject to the terms and conditions in our disclaimer
Microcache is ruin of northern battery in Okunoshima.
Okunoshima might make you happy currently. However, there were toxic gas plant until the end of WWII.
There is ruin of northern battery. Tiny magnetic container(not nano) was attached a steel object.
Please return the container as you foud to prevent lost.
(No hints available.)