Kagoshima Bay
Iwatsurugi Castle was a castle near the coast of Kagoshima Bay, in the vicinity of modern-day Shigetomi Beach, in what is now Aira, Kagoshima. During the siege, Ijuin Tadaaki, one of the Shimazu generals, maneuvered five ships to within range and proceeded with an offshore bombardment of the enemy garrison, a few of whom were killed. The siege lasted a few weeks until the castle fell.