Sunayama Beach, Coastal beach in Miyakojima, Japan.
Sunayama Beach is a sandy beach on the northwest coast of Miyakojima, Japan, known for its clear water and a natural rock arch that rises from the sea at the southern end of the shore. A sand dune separates the beach from the parking area, and visitors must cross it on foot to reach the water.
The rock arch was shaped over centuries by the erosion of coral limestone through ocean currents and wave action. The arch changes slowly over time, and small sections have broken away in past decades.
The name Sunayama means "sand mountain beach" in Japanese, referring to the dune that visitors cross on foot before reaching the water. The walk over the dune creates a sense of arrival, as the sea only comes into view once you reach the top.
The beach has very few facilities, so it is worth bringing water, food, and sun protection before arriving. The rock arch is easiest to see and approach at low tide, when the water around its base is calm and shallow.
A population of sea turtles feeds regularly in the waters near the rock arch, and snorkelers often spot them close to the coral formations at the southern end of the beach. Manta rays also pass through this area, though sightings are less predictable.
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