It opens 365 days a year, so the honest answer is almost always yes — the exception is volcanic activity on the Reykjanes peninsula, which has closed it at short notice more than once since 2021. The box below reads the official Icelandic alert feed. Underneath: why a booking matters more than the opening hours, and what to do if you cannot get in.
It opens 365 days a year, and the only thing that has ever shut it is volcanic activity a few kilometres away on the Reykjanes peninsula. There is no such alert in force, so it is operating normally. You still need a pre-booked time slot — walk-ins are not accepted, whatever the status.
We read the official alert feed from ICE-SAR, the Icelandic search and rescue service, at safetravel.is — not the Blue Lagoon's own page. That feed is what announces a Reykjanes closure. For opening hours and tickets on a given date, always confirm with the Blue Lagoon directly.
The Blue Lagoon operates every day of the year, including Christmas and New Year. There is no weekly closing day and no off-season shutdown. The one thing that has ever closed it is volcanic activity on the Reykjanes peninsula, which is what the status box above is watching.
The more useful question is usually not whether it is open but whether you can get in — and that depends on something entirely different.
Entry is by pre-booked time slot only. Walk-ins are not accepted, and this catches people out constantly: the car park can be half empty and you will still be turned away at the desk. In summer, and over Christmas and New Year, slots sell out days ahead — sometimes weeks for the popular late-afternoon times.
Book the slot before you book anything else around it. Everything else about the day is flexible; the slot is not.
Hours shift with the season — longer in summer, shorter in the depths of winter — and they change often enough that quoting exact times here would just make this page wrong for part of the year. Two things stay constant:
Check the exact hours for your date on the Blue Lagoon's own site when you book — that is the only source that is right on the day.
The lagoon sits next to the Svartsengi geothermal plant on the Reykjanes peninsula. Since volcanic activity resumed there in 2021, fissures have opened close enough to force temporary evacuations and closures on several occasions. The pattern each time has been the same: closure at short notice, then reopening once the authorities clear the area — days rather than weeks.
This is not a reason to skip the Blue Lagoon. It is a reason to book with free cancellation, keep it early in your trip so you have room to reschedule, and check the status before you drive out. For the wider picture see our live eruption status page.
Iceland is not short of geothermal water. The realistic substitutes:
| Where | Distance | Why go |
|---|---|---|
| Sky Lagoon | In Reykjavík | Ocean-edge infinity pool and a seven-step ritual that many people prefer to the Blue Lagoon. Nowhere near Reykjanes, so unaffected by anything happening there. |
| Hvammsvík Hot Springs | ~45 min north | Natural pools on the shore of Hvalfjörður. Quiet, and the water temperature varies pool to pool. |
| Secret Lagoon | Golden Circle | Iceland's oldest pool, simple and unpolished. Easy to add to a Golden Circle day. |
| Laugarvatn Fontana | Golden Circle | Lakeside steam rooms fed by a natural vent, plus a lake you can plunge into. |
| Mývatn Nature Baths | North Iceland | The north's answer to the Blue Lagoon, and far less crowded. Only relevant if your route goes that way. |
| Krauma | West, near Deildartunguhver | Fed by Europe's most powerful hot spring. Small, modern, rarely busy. |
Full comparison of the two big ones: Blue Lagoon or Sky Lagoon.
The lagoon is roughly 20 minutes from Keflavík Airport and 45 to 50 minutes from Reykjavík, which makes it the classic arrival-day or departure-day stop rather than a detour from the city. It has luggage storage, so you can go straight there from the airport with your suitcases and continue afterwards.
Driving yourself is simplest if you already have a car. If not, transfer buses run from both the airport and the city and are timed to entry slots. See where to stay nearby if you want an early slot without an early drive.
Timed admission slots. Book the slot first, plan the day around it.
Check availabilityCoaches timed to entry slots, with luggage storage at the lagoon — the arrival-day option without a car.
See transfersThe fallback if the Blue Lagoon is sold out — or if you would rather not drive out to Reykjanes at all.
BrowseAffiliate links — see our disclosure. Same price either way.
Yes, all winter. Bathing in 38°C water while it snows is one of the better things you can do in Iceland, and the walk from the changing room to the water is short and sheltered.
No. Entry is by pre-booked time slot only, and the desk will turn you away without one however quiet it looks.
Sometimes yes, sometimes no. Fissures on Reykjanes have forced closures more than once, always at short notice. The status box at the top of this page reads the official alert feed; confirm with the Blue Lagoon on the day.
Rarely, and normally only if the road out is closed rather than the lagoon itself. Check road conditions in winter before you set off.
Yes, thoroughly and without a swimsuit, in the changing rooms before entering. It is not optional and it is not negotiable — Icelandic pools use very little chlorine and this is why the water stays clean.
Yes — plenty of people do, and lockers hold a spare pair. The practical problems are steam fogging and mineral spray: keep your head above water, wipe lenses with a dry corner of a towel rather than your fingers, and leave any pair you would grieve for in the locker. Contact lenses are fine too; just avoid dunking your face.
It will not fall out, but the silica stiffens hair like a bad hairspray for days if you let it soak. The routine that works: apply the free conditioner generously before you get in, leave it in, and keep long hair tied up and out of the water. If it does get soaked, condition heavily for a couple of days — it recovers.
It is expensive and it is busy, and it is still worth doing once. If you only have one geothermal visit in you and you are landing at Keflavík anyway, the logistics make it the easy choice.