The beach is entirely man-made, created using imported sand to ensure a uniform texture and aesthetic.
The water is classified as 'AA' grade, which is the highest water quality designation by the Japanese Ministry of the Environment.
The beach layout is specifically designed in a 'Y' shape to manage tidal flow and wave action.
It is situated within the grounds of the Ocean Expo Park, which was originally constructed for the 1975 International Ocean Exposition.
The sand is composed of crushed coral and shells, which helps maintain the bright turquoise color of the water.
The beach is one of the few locations in Okinawa that strictly monitors water quality and jellyfish presence daily during the swimming season.
Emerald Beach is a Y-shaped artificial beach located within the Ocean Expo Park on the Motobu Peninsula of Okinawa. The beach is divided into three distinct zones: the 'Play Beach,' the 'Rest Beach,' and the 'Observation Beach.' Its water quality is consistently ranked AA, the highest standard in Japan, characterized by its high clarity and shallow depth. The area is engineered to protect the nearby coral reef ecosystem while providing a safe swimming environment. A unique feature is the surrounding vegetation and landscaping integrated into the Ocean Expo Park grounds. The facility includes comprehensive amenities such as locker rooms, showers, and accessible pathways. The beach is designed to be family-friendly with calm waters protected by breakwaters. It is part of the larger government-managed national park complex.
The elevated path near the beach entrance provides an aerial view of the Y-shaped shoreline against the blue water.
Bring reef-safe sunscreen to help protect the sensitive marine environment nearby.
Use the free foot-washing stations located at the beach exits to remove sand before entering other park areas.
Visit the nearby observation decks for a panoramic view of the beach layout and Ie Island on the horizon.
Do not collect shells or coral from the beach, as removal is prohibited to preserve the park's environment.
Swimming is typically prohibited during the winter months when lifeguard stations are closed.
Swimwear is required in the water; rinsing off sand before using indoor facilities is mandatory.
