Constanta & the Romanian Black Sea Coast

Constanta is two cities stacked on one headland. On the old Peninsula you get ancient Tomis, the town where the Roman poet Ovid was exiled two thousand years ago, plus a huge floor of Roman mosaic and a fairy-tale Art Nouveau casino that reopened in 2025 after five years wrapped in scaffolding. Ten minutes north, Mamaia is a 8 km ribbon of sand and beach clubs that becomes Romania’s loudest summer resort. The trick is knowing that the history and the beach are separate days, and this guide splits them so you can do both in a long weekend, with prices in lei and the fastest way down from Bucharest.

The short version: base yourself either in the quiet, atmospheric Peninsula for the ruins or in Mamaia for the beach, take the train down from Bucharest in about two and a half hours to skip the summer traffic, and give the old town a slow half-day on foot. Romania uses the leu (RON), not the euro, so budget in lei and keep some cash for small museum fees.

Is Constanta worth visiting?

Yes, but go knowing what it is. This is Romania’s oldest continuously inhabited city and its biggest sea port, founded by Greek colonists as Tomis around the 6th century BC, so the draw is layered history right on the water rather than a tidy, polished old town. Parts of the Peninsula are gloriously restored, parts are still peeling, and that faded-grandeur mix is exactly its character. Come for a day or two of Roman ruins and seafront architecture, tack on the beach at Mamaia if the season is right, and you have got the coast covered.

What makes 2026 a good year to come is timing. The landmark Casino reopened to the public in May 2025 after a long restoration, and the Roman Mosaic Edifice, the other must-see, reopened in late 2025 after its own overhaul. For years both were off-limits or hidden behind hoardings, so the two anchors of a Constanta visit are finally back at the same time.

The Constanta Casino: what to know before you go

The Casino (Cazinoul) is the reason most people photograph Constanta. It is a swooping Art Nouveau pile on the seafront, designed by the Swiss-Romanian architect Daniel Renard and inaugurated in August 1910 on the initiative of King Carol I. For decades it decayed into a beautiful ruin, which is how a generation of travellers knew it. A restoration ran from January 2020 to March 2025 and it reopened to visitors on 21 May 2025 during the Constanta Days, now working as a cultural venue for exhibitions and events rather than a gambling hall.

Here is the honest, practical part. The exterior, the terrace and the promenade around it are the real draw and they are free and open all the time, best at golden hour when the light hits the sea-facing facade. Interior access has come back in stages: since the reopening it has run through timed entry slots and event days rather than a permanent walk-up ticket booth, and different sources quote different rules. So plan to enjoy it from outside, and if you want to get inside, check the current arrangements on the Constanta city hall channels a few days ahead rather than assuming you can just turn up.

What can you do in the old Peninsula?

Everything historic is a short, flat walk, so treat the Peninsula as one loop on foot. Start in Piata Ovidiu (Ovid Square), the ancient heart of the city, where a bronze statue of Ovid has stood since 1887. The Romans banished the poet to Tomis in AD 8 and he grumbled about the cold and the frontier for the rest of his life; the statue is the city’s unofficial mascot and the obvious meeting point.

Facing the square is the National History and Archaeology Museum, one of Romania’s oldest, set in the former city hall. Admission is modest, around 20 lei, and it is usually closed on Mondays and Tuesdays, so do not plan the old town for the start of the week. The reason to go in is the Hellenistic and Roman finds from Tomis: the star piece is the Glykon Snake, a strange marble serpent god carved from a single block, alongside the Hamangia-culture terracottas known as the Thinker and the Sitting Woman. Give it under an hour.

A minute away is the highlight I would not skip: the Roman Edifice with Mosaic (Edificiul Roman cu Mozaic). Discovered by accident in the 1960s, it shelters a mosaic floor that originally ran to some 2,000 square metres, of which about 850 survive today - still the largest Roman-Byzantine mosaic in the Balkans, part of a 3rd-to-4th-century commercial complex that once stepped down from the upper town to the ancient harbour. The mosaic is over 1,700 years old, and the edifice reopened to the public in late 2025 after a long rehabilitation, reportedly with free entry. Stand at the top and you get the mosaic in the foreground and the modern port beyond - a neat compression of the whole city’s history.

Two more quick stops round out the loop. The Great Mosque (Moscheea Carol I), built in 1910 for the local Muslim community, has a 47-metre minaret you can climb for the best panorama over the harbour and the old roofs for a small fee. And down on the promenade, the little Genoese Lighthouse, an 8-metre stone tower that honours the medieval Genoese traders who once worked this coast, is a photo stop rather than a visit; it is fenced and you look at it from outside. While you are there, hunt down Stradela Vantului (Wind Lane), the narrowest street in the city at barely two metres wide.

One honest heads-up: do not build a day around the old seafront Aquarium. It has been closed while a new modern one is planned, so treat it as shut unless you hear otherwise on the day.

Is Mamaia beach worth it, and how is it different?

Mamaia is a different animal from the old town, and whether you love it depends on what you want. It is Romania’s largest and most popular seaside resort, going back to 1905, laid out on a narrow spit only about 8 km long and 300 metres wide between the open Black Sea and Lake Siutghiol. That geography is the whole appeal: wide sandy beach on one side, a freshwater lake with watersports on the other, and a wall of hotels, pools and beach clubs down the middle. A cable car runs the length of the strip in season.

If you want a lively, built-up beach holiday with nightlife and every sunbed for hire, Mamaia delivers exactly that. If you picture a quiet cove, this is not it - it is busy, developed and at its most crowded in July and August. The season runs from mid-June to early September, when daytime temperatures sit around 25-30 C. It is barely 13 km from the centre, a 20-25 minute drive or a short local bus, so you can easily sleep in the Peninsula for the history and taxi up for a beach afternoon, or the reverse.

Being a port city, Constanta is also a fine place to eat fish and seafood by the water - our Romanian food guide covers what to order, from a fried Black Sea fish to a plate of mici off the grill. For where to sleep, the choice really is Mamaia for the beach or the Peninsula and city centre for the ruins and the promenade; compare hotels in Constanta and Mamaia and book early, because the coast fills up across summer weekends.

How do you get to Constanta from Bucharest?

Two easy ways, and the season decides which. The train is the stress-free option: Romanian Railways (CFR) runs roughly sixteen services a day over the 200-odd kilometres, taking about two and a half hours, with fares from around 48 lei. In July and August, when the motorway to the coast jams up, the train is genuinely the smarter move.

Driving takes about two and a half to three and a half hours on the A2, the “Sun Motorway”, roughly 200 to 206 km of flat, straightforward road from Bucharest. Budget for one cost the maps hide: crossing the Danube at Fetesti-Cernavoda you pay a bridge toll, about 13 lei for a car under 3.5 tonnes. The real catch is timing - the A2 seizes up on Friday evenings heading to the coast and Sunday evenings heading back, so avoid those windows or expect to crawl. A car earns its keep if you are combining Constanta with the wider Dobrogea region; you can rent a car for Romania and drive the coast at your own pace, or if you would rather not drive at all, a fixed-price transfer from Bucharest or the airport drops you at the door.

Constanta also has its own airport, Mihail Kogalniceanu (CND), just inland, which runs mostly seasonal and low-cost flights; for the full picture of flying into Romania and connecting on, see our guide to which airport to use for Romania.

How does Constanta fit a wider Romania trip?

Easily, because it is the natural coastal add-on to an inland route. If you are doing the classic loop, our Romania 7-day itinerary runs out of Bucharest through Transylvania, and a couple of extra days on the coast at Constanta and Mamaia make a relaxed finish once you have had your fill of castles and mountains on the Transylvania road trip. The contrast is the point: Gothic citadels and Carpathian passes one week, Roman mosaics and a beach the next.

The other pairing is with the wild northeast of the same region. From Constanta it is a few hours north to Tulcea, the gateway to the Danube Delta, Europe’s largest wetland and a completely different Romania of reed channels, pelicans and fishing villages. Do the ancient port and the beach first, then swap the sunbeds for a boat into the delta, and you have seen the best of Dobrogea, the quiet corner of the country between the Danube and the sea.