Facilities

Hotel On Plonge Junior is on Bulevardul Mamaia, in the Debarcader area, on the shore of Lake Siutghiol at the southern end of Mamaia. The beach is about 300 metres away, Aqua Magic and the cable car are a few steps away, Luna Park is around 450 metres away, and Constanța is 5–6 km away.

Rates at Hotel On Plonge Junior vary with the season, the day of the week and availability, and the room type matters too. Whether breakfast is included depends on the rate. For specific dates you can check availability with our booking partners.

The double and the twin room with balcony look onto Lake Siutghiol: the first has a super-king bed, the second two single beds, and both have a balcony facing the lake and a bathroom with a shower. The suites, the Deluxe and the Economy rooms face the city. The hotel terrace, however, overlooks the lake and is open to all guests.

For a family of three, the two types of suite are the best fit, with a super-king bed, a sofa bed, a seating area and a bathtub; one has a balcony, the other does not. Extra beds are not available, and the suites sleep a maximum of three. Couples can choose the double room with a lake-view balcony, the Deluxe room with a city-view balcony or the simpler Economy room without a balcony.

Check-in runs from 16:00 until midnight, and check-out is by 12:00. The front desk is open 24 hours and has luggage storage, useful if you arrive early or leave late. The minimum check-in age is 18.

It depends on the rate you book. Breakfast is continental, with vegetarian options, and is usually served as a buffet from 07:30 to 10:30; in good weather many guests take it on the lake-view terrace. It can also be served in your room.

There is public parking at the property, including an accessible space. Spaces cannot be reserved, are allocated subject to availability and charges may apply. In summer much of the public parking in Mamaia is paid, so it is worth asking the hotel before you arrive.

No, Hotel On Plonge Junior does not accept pets. Keep this in mind before booking.

Yes, WiFi is free and available throughout the hotel. Most guests are happy with it, though some have noticed it can be slow at times, which is worth knowing if you need to work online.

Mihail Kogălniceanu International Airport is about 17 km away, roughly 20 minutes by car. The hotel has no shuttle of its own, and taxis wait outside the arrivals area. If you arrive by train at Constanța station, about 5 km away, you can continue on bus 100M, introduced in summer 2026, or, from October, on line 100 to Sat Vacanță, about 600 metres from the hotel.

No. The hotel has no pool or private beach. Mamaia's public beach is about 300 metres away, and the Aqua Magic water park is a few steps from the hotel.

Yes, the hotel operates all year round. In summer Mamaia is crowded and lively, and the cable car only runs in season; out of season the resort becomes very quiet, which suits anyone looking for calm by the sea.