Kobori-ryū; swimming in armor
A traditional Japanese martial arts school specializing in suijutsu (combat swimming), including techniques for swimming while wearing armor.
Kobori-ryū is a classical martial arts school that teaches techniques for swimming while wearing armor.
The name 小堀流 (Kobori-ryū) is derived from the founder's family name 小堀 (Kobori). The exact historical derivation is uncertain, but it is a traditional school of suijutsu.