Comfortable Accommodations Seragaki Blue Twins 201 in Onna offers a two-bedroom apartment with a living room and a fully equipped kitchen. The property includes air-conditioning, a washing machine, and a kitchenette. Essential Facilities Guests enjoy free WiFi, private check-in and check-out services, full-day security, and bicycle parking. Free on-site parking is available. Prime Location Diamond Beach - a 5-a stay. Diamond Beach - a 5-minute walk. Nearby attractions include Onna-son Community Center (1.4 mi), Maeda Cape (9.3 mi), and Busena Marine Park (6.2 mi). Naha Airport is 30 mi away.