Ote-mon Gate is one of the entryways to the Imperial Palace East Gardens(*). The cache is placed nearby the gate and you can try for it before or after visiting there. The cache is a micro so be sure to bring your own writing utensil. Please be extra careful when retrieving and returning the cache. If you do visit the gardens please include a photo of the nice scenery.
(*) Note that access to the East Gardens is closed on Mondays and Fridays if you are planning to visit there.
(**) The cache owner has relocated out of the area and will be unable to perform maintenance. Kindly request that the GC community assist to keep this cache active.