Guests staying at Once in Mykonos - Designed for Adults enjoy access to a full-service spa, a gym, and free WiFi in public areas. Free valet and self parking are available—or if you're not driving, take the free airport shuttle (available 24 hours). The front desk has multilingual staff on hand 24/7 to help with concierge services, dry cleaning/laundry, and luggage storage. Other amenities at this luxury hotel include coffee/tea in a common area, a terrace, and laundry facilities.