Therme Bucharest: Europe's Largest Thermal Spa

Therme sits 20 km north of Bucharest at Balotesti, a few minutes past the airport, and it works as a ladder of three zones: Galaxy is the family end with the slides and the wave pool, The Palm is the adults-only palm house with the mineral pools, and Elysium is the sauna and wellness floor. Every ticket includes the zones below it, so you never need to buy twice. Three hours from Monday to Thursday costs 71 lei for Galaxy, 102 for The Palm and 132 for Elysium (therme.ro, checked September 2026), and the 442 city bus runs there from Piata Presei Libere for a 3-lei fare.

The building is why people make the trip out of town. It’s a glass dome over roughly 500 palm trees and some 800,000 plants, with the water held at 33 degrees and the air at 29 to 30, drawn from a borehole 3,100 metres down. It opened in January 2016 after a 50-million-euro build, covers about 30,000 square metres with more than 25,000 of that under roof, and took 1.2 million visitors in its first year. One expectation to reset at the door: this is a modern water and wellness complex, not a historic bath house. If you have Budapest’s Szechenyi in your head, the atmosphere here is closer to a very good tropical greenhouse than to a Habsburg-era pool hall.

Galaxy, The Palm or Elysium: which ticket to buy

Galaxy is the loud one: about 1.7 km of slides, a wave pool and interactive water attractions, aimed squarely at families and teenagers. The Palm is the quiet counterweight, with mineral pools, hydromassage beds, bars you swim up to and a roof that opens in good weather, and a Palm ticket also covers Galaxy. Elysium adds the themed saunas, the spa treatments and the sit-down restaurant on top of both.

Now the rule that decides your day, and the one families tend to discover at the ticket desk. Children aged 3 to 14 are allowed in Galaxy only. From 14 they can go into The Palm and Elysium. So if your child is 13, the whole group is in Galaxy for the duration, and the plan of doing the slides first and then drifting off to the mineral pools doesn’t exist. Two adults on their own should default to The Palm. Anyone who came for the sauna ritual should pay the difference for Elysium, because that’s the only zone where the saunas live. You’re not locked in, though: an adult can upgrade a zone on the wristband once inside, Galaxy to The Palm for 31 lei from Monday to Thursday (36 from Friday to Sunday) and The Palm to Elysium for 30, so a group of grown-ups can start apart and move up.

What it costs in lei

Prices are per person from therme.ro, checked again in September 2026, Monday-to-Thursday figure first and Friday-to-Sunday second. Galaxy: 71 or 81 lei for three hours, 101 or 111 for four and a half, 141 or 151 for a full day. Children aged 3 to 14 pay 55 or 65 lei for three hours, students and pensioners 56 or 66. The Palm: 102 or 117 for three hours, 132 or 147 for four and a half, 172 or 187 for the day. Elysium: 132 or 147, then 162 or 177, then 202 or 217. Overstay your slot and the exit gate charges 10 lei per extra half hour. Visitors with disabilities get 40 percent off, available any day but only at the ticket desks, not online. One seasonal catch to note: during school holidays, which include July and August, the weekend rate applies every day, so a summer weekday costs the same as a Saturday and the evening special below is switched off.

Two discounts are worth planning around. The evening special runs from Monday to Thursday only, from 18:30 on Mondays and Thursdays and from 17:30 on Tuesdays and Wednesdays, and drops Galaxy to 64 lei, The Palm to 89 and Elysium to 125; it’s switched off during school and public holidays. The better deal for The Palm, and the one people tend to miss, is the morning special: Monday to Friday until 11:30, sold only at the ticket desks, The Palm costs 75 lei for three and a half hours, and staying past that recalculates the visit at the standard Palm price. That’s cheaper than the standard three-hour Palm ticket at 102 lei and half an hour longer, and mid-morning is when the place is at its emptiest. If you can face an early start, it’s the lowest price The Palm has.

How long to book, and the timing trap

Your clock starts when you tap in at the turnstile, not when you get in the water, and the facilities shut 30 minutes before the posted closing time. Between finding a locker, changing, showering and walking to the far end of a complex built for more than 4,000 people, a three-hour ticket realistically buys a bit over two hours of actual swimming. That’s enough for Galaxy with small children, who will be done sooner than you think, and it’s thin for anyone who wants to work through the saunas.

Four and a half hours is the practical minimum for The Palm or Elysium, and the arithmetic backs it up: the jump from three to four and a half hours costs 30 lei, while the same 30 lei buys only three extra half hours at the exit desk. Take the full day only if you intend to eat inside and treat the spa as the whole outing. Watch the clock near the end either way, because the queue for the exit gates is part of your time too.

Getting there without a car, and the airport trick

The cheap way is bus 442, run by the city operator STB, which starts at Piata Presei Libere in northern Bucharest and terminates at Therme. Expect around 20 stops and about 38 minutes, at the standard 3-lei city fare valid for 90 minutes. Journey planners put the weekday service roughly between 04:20 and 22:35 outbound and 05:05 and 23:25 back, but those are third-party figures, so check the current timetable on the STB site; the last bus isn’t something to assume.

The detail that changes trips is this: the 442 stops at Henri Coanda airport on its way. That makes Therme the most rewarding thing in Bucharest to do on a long layover, and it also means you can go straight there on arrival or fill the gap before a late flight, which beats another lap of the terminal by a distance. The same trick works in reverse if your hotel sits anywhere near the airport road. For the rest of that corridor, our Bucharest airport to city guide covers the trains and the express bus.

One warning about the bus, and it applies all over Bucharest: you can’t pay the driver in cash. Buy a ticket from the machine at the stop, tap a contactless bank card on the validator inside, or use the 24pay app. Turn up with banknotes and nothing else and you’ll watch the 442 pull away.

By car, the approach from the city is the DN1 towards Ploiesti, and the turn is easy to miss: roughly 300 metres before the Hornbach store you move right into the dedicated access lane for Therme. Coming south from Ploiesti, you pass under the airport flyover and turn right at the row of Therme flags. Electric cars are well served, with 14 charging bays on site at 1.75 lei per kWh, most of it from the solar panels on the roof. An app car from the centre costs somewhat more than the usual 60 to 130 lei run out to the airport, since Therme is another stretch up the same road, and going home you’re relying on a driver willing to come this far out late at night.

When to go

Therme opens 10:00 to 23:00 from Monday to Thursday, 09:00 to midnight on Friday and Saturday and 09:00 to 23:00 on Sunday, the same in all three zones. The pools, slides and saunas stop half an hour before closing, and the last entry is 90 minutes before the doors shut. That’s the weekly pattern therme.ro showed in September 2026, and it’s the same one the site carried in December 2024. What moves around it is the calendar. Over Christmas and New Year, Therme has posted a separate holiday timetable, and now and then a single zone shuts for a few days of maintenance; Galaxy’s five-day break in September 2026 is one example. Both go up on therme.ro/program and the events page, so check them before you set out.

The seasons change the place more than the clock does. Summer is the outdoor half: the Sands of Therme beach, its pool and a programme of beach parties and sports days, which in 2026 wound up with a last beach day on 13 September. After that you’re indoors, where the water and air hold the same warmth all year and the terraces open when the weather allows. Autumn has its own draw in Elysium: Sauna Fest takes up most of October, with its Aufguss shows included in the Elysium ticket (6-26 October in 2025, 5-25 October in 2026). School holidays change the price rather than the hours, since every day then costs the weekend rate.

The weekend surcharge is only 10 to 15 lei, which tells you nothing about the difference that actually matters. Saturdays, Sundays and school holidays fill the place with Bucharest families, the slide queues stretch and the mineral pools stop feeling restful. A quiet weekday morning and a packed Saturday afternoon in the same zone are two completely different experiences, and during the summer school holidays, when the weekend tariff applies every day, they cost the same, so the crowd is the variable to plan around. Winter is the strongest season for the trip: sitting in 33-degree water under a glass roof while it snows on Ilfov is why locals keep season passes, and it answers a rainy day on a city break, alongside the museums in our things to do in Bucharest guide.

What to bring and how the wristband works

Take a swimsuit and flip-flops, because you walk a long way on wet stone between zones. Towels and robes are rented on site, with therme.ro listing a towel at 31 lei and a robe at 39, so packing your own earns its space in the bag. A locker comes with the ticket.

At the entrance you’re given an electronic wristband, and it does three jobs: it opens your locker, it counts your time, and it works as your wallet. Everything you order inside, from food and drinks to rentals and treatments, goes on the band and is settled at the exit. That’s how the total ambushes people at the gate. Agree on a limit before anyone starts ordering cocktails at a swim-up bar. Payment is in lei, since Romania is outside the eurozone; cards work everywhere on site, and our money in Romania guide covers the cash side.

Is it worth the trip, and what to pair it with

For a rainy day, a jet-lagged first afternoon, a long layover or a family that has run out of patience with churches, Therme earns its place easily. The core offer is real: warm water, a proper tropical greenhouse and, at 71 to 132 lei for three hours, a price that would look like a misprint in Western Europe. What you shouldn’t expect is peace on a Saturday, historic architecture, or food worth planning your day around.

If you’re driving, the same corner of Ilfov county holds one more stop worth an hour. Snagov Monastery stands on a wooded island in Lake Snagov a short way further north off the DN1, and it pairs neatly with a morning session here. The island church carries the most famous of the Vlad the Impaler grave legends, which our Dracula in Romania guide takes apart. Sort the ride out first, then choose between the slides and the saunas, and if you’d rather not drive back into town damp and sleepy, make a night of it: our where to stay in Bucharest guide weighs up the districts, from the centre to the quieter north.