Featuring free WiFi throughout the property, Hotel Proton K3 offers accommodations in Neptun, just 27 miles from Mamaia. Guests can enjoy the on-site bar. Every room has a TV. Some rooms have a sitting area for your convenience. The rooms come with a private bathroom. You will find a 24-hour front desk at the property. Constanţa is 21 miles from Hotel Proton K3, and Olimp is 1.4 miles away. The nearest airport is Mihail Kogălniceanu International Airport, 35 miles from Hotel Proton K3.