Utsuro-Bune: The Hollow Ship of Haratonohama
Japanese fishermen found a spherical vessel with an unknown woman aboard, documented in three independent sources.

Background
On February 22, 1803, fishermen at Haratonohama beach in Ibaraki Prefecture, Japan, encountered a round, dome-shaped vessel that had washed ashore. Through the vessel's glass-like portholes, they observed a young woman with red or auburn hair, holding a small box she refused to let anyone touch.
The Incident
The fishermen discovered the unusual vessel on the beach.
It was described as round and dome-shaped, resembling no known watercraft of the era.
Witness Observations
- Through glass-like portholes, a young woman with red or auburn hair was visible
- She held a small box and refused to let anyone touch it
- The vessel's interior featured unknown writing or symbols
Historical Records
Three independent Japanese historical documents record this event:
- Toen Shōsetsu
- Hyōryū Kishū
- Ume no Chiri
These sources provide remarkably consistent details.
Significance
The vessel's description matches no known watercraft of the era.
It has become one of the most discussed cases in Japanese anomaly research.