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 private parking is available. Prime Location Diamond Beach is a five-minute walk away. Naha Airport is 30 mi from the property.