The Blue Lagoon (Bláa lónið) is Iceland's world-famous geothermal spa, set in a black lava field on the Reykjanes Peninsula in the country's southwest. It is a man-made lagoon fed by mineral-rich water drawn from the neighbouring Svartsengi geothermal power plant; silica and algae give the water its signature milky blue-green colour, and bathing temperatures stay around 37–39°C. As of 2026 the lagoon is operating normally, but the Reykjanes Peninsula has seen repeated volcanic activity since 2023, so the spa closes temporarily when an eruption begins and reopens once authorities assess it is safe. Sitting between Keflavík Airport and Reykjavík, it is one of Iceland's signature bucket-list stops and an easy add-on for an arrival or departure day.
Soaking in the milky blue-green geothermal water while applying the complimentary silica mud mask (usually included with a ticket)
The surreal contrast of steaming turquoise water against jet-black lava fields
The in-water bar where you can order drinks without leaving the lagoon
On-site dining and wellness at the LAVA and Moss restaurants and the spa's treatment options
Bathing late into the bright summer midnight sun, or watching for the northern lights over the water in winter
Good to know
RulesNo walk-ins are accepted. You must pre-book a dated, timed slot on the official site (bluelagoon.com); summer slots sell out early, so reserve well ahead.
MannersIt is both a rule and basic etiquette to shower naked with soap before entering. Use the gender-separated shower rooms; staff may turn you away if you skip this step.
SafetyThe silica and salt in the water dry out and tangle hair badly. Apply the provided conditioner generously beforehand and keep your head above water.
SafetyReykjanes is an active volcanic zone with a real chance of earthquakes or eruptions. Check the official 'Seismic activity' page and Icelandic authority updates (safetravel.is) before and around your visit, and carry travel insurance.
SeasonSummer brings crowds and near-24-hour daylight; winter can mean high winds and icy paths that complicate access. As an outdoor spa it demands warm, slip-resistant gear for the walk in and out year-round.
CautionLook-alike resale and lookbooking sites posing as 'official' often rank high in search. Confirm you are paying on bluelagoon.com or the official transport partner (destinationbluelagoon.is) before you check out.
Practical info
The Blue Lagoon is about a 20-minute drive from Keflavík International Airport and roughly 40–50 minutes from Reykjavík, with shuttle buses run by Destination Blue Lagoon (official) and Reykjavik Excursions. Opening hours vary by season (up to 07:00–23:00 in peak summer) and pricing is dynamic across packages (Comfort/Premium/Signature and more) and time slots, so always confirm the latest hours, prices and operating status on the official website before you go.
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