The pond is actually a submerged volcanic crater lake fed by seawater filtering through basaltic rock crevices.
The water levels in the pond rise and fall in synchronization with the tides of the Sea of Japan.
Local fishermen historically used the pond as a natural fish preserve to store their daily catches.
The brackish environment supports a mix of species rarely seen together in a single confined area.
Itsukushima Shrine was established here to protect the safety of local sailors and the abundance of the sea.
The surrounding terrain is part of the Kasayama area, which is considered one of the smallest volcanoes in mainland Japan.
Myōjin Pond is a tidal saltwater pond formed by volcanic basalt rocks separated from the Sea of Japan. The pond is naturally connected to the ocean via underground fissures, which allow seawater to flow in and out with the tides. This unique hydrological setup sustains a diverse ecosystem of deep-sea and coastal fish, including sea bream and striped jack, inside the enclosed body of water. Itsukushima Shrine is situated on the pond's edge, featuring a striking red torii gate reflected in the still water. The site is located on the Kasayama Peninsula, a dormant volcano known for its geological significance in Hagi. The pond remains a designated prefectural natural monument due to its rare biological and geological characteristics.
From the wooden bridge near the shrine, capturing the red torii gate reflected against the dark volcanic rocks.
Bring a small bag of fish feed if available at the entrance to interact with the large schools of fish that gather near the banks.
Wear comfortable walking shoes, as the paths around the basaltic rock formations can be uneven.
Visit during low tide if you want to see the water level fluctuations more clearly at the inlet.
Do not attempt to walk on the rocks near the water's edge as they can be slippery and unstable.
Maintain a quiet demeanor to respect the sacred nature of the shrine; do not throw unauthorized food into the pond.
