What Are The Rules And Etiquette For Visiting Hot Springs In Iceland?

What Are The Rules And Etiquette For Visiting Hot Springs In Iceland?

The core rules are simple: shower thoroughly without a swimsuit before entering, wear proper swimwear in the water, remove silver and copper jewellery, keep phones out of changing rooms, and follow each venue's posted instructions. The naked-shower rule is not a house quirk, it is written into Icelandic health regulation 814/2010, and staff at every lagoon enforce it.

That single regulation does most of the work here. Article 9 of regulation nr. 814/2010 on hygiene at swimming and bathing facilities states that guests shall wash themselves without swimwear before going to the pool, and it also requires bathing facilities to provide mild liquid soap and to display the washing instruction where guests can see it. The full text is published in the official Stjórnartíðindi gazette at adverts.stjornartidindi.is, and it is why an attendant at a municipal pool may quite firmly send you back to the showers.

The reason the rule exists is water chemistry. Many of Iceland's geothermal lagoons run with little or no chlorine because the water constantly renews itself, so hygiene at the point of entry is the main defence. Reykjavík City explains the same logic for its pools: cleanliness matters "to keep the environment clean and pleasant for everyone and to limit the use of chlorine in the water", as the city's own swimming guide at reykjavik.is puts it.

Everything else, from jewellery to phone policies to alcohol limits, is venue-specific, and the differences between a municipal sundlaug and a ticketed lagoon are bigger than most visitors expect. This page walks through each rule with the venues' own published wording, so you know exactly what to expect before you buy a ticket. For a broader primer on the whole trip, our piece on what first-timers wish they knew covers the non-etiquette surprises.

Why Do You Have To Shower Without A Swimsuit?

Because regulation 814/2010 requires it at every swimming and bathing facility in the country, and because most geothermal lagoons use little or no chlorine, relying instead on continuous water renewal. The shower is the hygiene system. Venues provide soap free, and attendants genuinely do check, so treat it as a legal requirement rather than a suggestion.

The mechanics are worth understanding, because they explain why staff enforce the rule so consistently. At Vök Baths the water is "a clean natural hot spring with no chlorine or chemicals added", with purity "maintained through continuous flow". At Earth Lagoon Mývatn the water is "completely free of chlorine or added disinfectants". GeoSea says the steady flow of water from its drillholes, between the pools and over their edges into the sea, keeps the water within the limits stipulated by health regulations without any cleaning agents. Secret Lagoon publishes a complete water replacement every 24 hours. Blue Lagoon says its geothermal seawater fully renews roughly every 40 hours with no additives.

With no chemical backstop, whatever is on your body when you enter is in the water until the flow carries it away. That is why the regulation pairs the naked-shower requirement with a mandate that facilities supply mild liquid soap and post the instruction visibly. It is also why the rule applies even at the most expensive spa in the country. Nobody is exempt.

How each venue words it, in its own published text:

A few practical notes from the venues' own guidance. Swimwear is compulsory in the water even though the shower is not: Forest Lagoon bans underwear, pants and sweaters in the lagoon, and Sky Lagoon states that bathing suits are obligatory in the lagoon area and the seven-step ritual. Reykjavík City adds that you remove your shoes before entering the changing rooms, that most people go barefoot, and that swim caps are not required. If the communal aspect worries you, several lagoons offer private options, which our guide to what each lagoon package includes breaks down tier by tier.

What Is Banned At Iceland's Lagoons?

Phones and cameras are banned in every changing room and shower, silver and copper jewellery should be left in the locker, outside drinks are not permitted, and alcohol is capped at some venues. Photography is allowed on the decks with respect for other guests, but tripods, selfie sticks and professional cameras are restricted at some sites.

The jewellery point is the one people forget. Earth Lagoon Mývatn recommends removing silver or copper jewellery before your visit because the geothermal water is naturally rich in sulfur, which can cause discoloration or tarnish. Blue Lagoon gives the same advice for its geothermal seawater, which is high in silica, algae and minerals. A cheap silver ring can come out of a two-hour soak visibly darkened.

Phones follow a consistent pattern. Sky Lagoon prohibits phone use, photography and recording of any kind in changing rooms and showers, and bans tripods, selfie sticks and professional cameras in the lagoon area. Blue Lagoon does not allow photography in or around the locker rooms. Vök Baths allows phones and cameras in the pools but strictly forbids them in changing rooms, and also prohibits drones during opening hours.

Alcohol is venue-specific and worth knowing in advance. Blue Lagoon sets a limit of three alcoholic drinks per guest while using the lagoon. Sky Lagoon goes further: guests are not allowed to enter the lagoon if a test shows results above 0.08% alcohol level in blood, and staff may ask for a breathalyzer test. Vök Baths prohibits outside drinks, though water bottles are permitted.

How Does A Municipal Pool Differ From A Ticketed Lagoon?

A municipal pool is chlorinated freshwater with hot tubs and a lap pool, entry usually costs around ISK 1300 with no booking, and the shower rule is policed by attendants. A ticketed geothermal lagoon runs on continuously renewing water, needs advance booking, and includes extras like towels, drinks and rituals. The etiquette core is identical at both.

Blue Lagoon itself published a comparison that captures the difference, describing a typical local sundlaug as having a lap pool, several hot tubs at different temperatures, often a steam bath or sauna, treated and chlorinated freshwater, and entry usually costing around ISK 1300 for adults with no booking needed. That ISK 1300 figure is Blue Lagoon's characterisation of municipal pricing, so treat it as an approximation rather than a tariff. The full index of guides sits on Lagoons in Iceland.

The experience gap is real, though. At a municipal pool you show up, pay at the desk, shower and swim. At a ticketed lagoon you book a timed slot, get a wristband that works as locker key and payment card, and receive inclusions that vary by tier. Blue Lagoon asks guests to arrive within the one-hour window of their booking and states you can stay in the lagoon as long as you like within opening hours. Forest Lagoon recommends guests do not stay longer than two hours and advises that guests who have not pre-booked do not have guaranteed entry.

The cheapest ticketed lagoon on the roster, Secret Lagoon at Flúðir, sits closest to the municipal experience in spirit: the venue publishes a continuous 24-hour water replacement, asks that visitors pre-book because it cannot guarantee a spot otherwise, and accepts ISK, USD and EUR cash as well as most cards. Its adult admission is kr. 4500. For visitors who want the geothermal water without the spa pricing, it is the natural first stop, and our Secret Lagoon visitor guide covers its history and layout in full.

What Does Each Lagoon Provide Free?

Towels are free at Sky Lagoon but rented at Forest Lagoon and several others, soap and shampoo are provided everywhere the shower rule applies, and drinks or rituals depend entirely on the tier you buy. Blue Lagoon includes a towel, a drink and the silica mud mask with every admission, which is why its Comfort tier costs more than a basic soak elsewhere.

This is where reading the fine print pays off. Blue Lagoon's own comparison with local pools is blunt about it: every admission includes "a towel, a drink of your choice, and the Silica Mud Mask, plus unlimited access to the sauna, steam cave, colder lagoon, and quiet area". Sky Lagoon includes towels free of charge for all guests, but does not offer robes or slippers because the lagoon is accessed directly from the changing rooms.

Forest Lagoon is the contrast case: towels are not included in the entrance fee but can be rented on site, and the venue only accepts Icelandic currency, taking cash in ISK and all credit cards except American Express. Vök Baths includes a tisane drink at the tea bar with admission, with towels available to rent at the venue. Earth Lagoon Mývatn includes towels only from the Earth Signature tier upward, with towel rental at 1,200 ISK for the basic tier.

The pattern to internalise: the more the venue relies on continuously renewing water, the more it tends to bundle into the ticket, because the spa model and the hygiene model reinforce each other. Our Sky Lagoon tickets and packages guide walks through every pass tier and what each one adds.

What About Hair, Contact Lenses And Children?

Silica in geothermal seawater can make hair temporarily stiff, so Blue Lagoon advises applying conditioner before entering and leaving it in. Contact lenses should be removed before entering Blue Lagoon because the minerals can irritate eyes. Age rules vary sharply: Sky Lagoon bans under-12s entirely, Hvammsvík requires guests to be 10 or older, and Blue Lagoon's minimum age is 2.

The hair advice is specific to silica-rich water, and Blue Lagoon is the venue that publishes it. The venue's own wording is that silica is "not harmful to hair" but can make it "temporarily stiff and difficult to manage", hence the conditioner recommendation. Prescription glasses can also be affected if submerged, since silica might damage the lenses. For a full treatment of the hair question, our article on why you should protect your hair in the Blue Lagoon goes deeper.

Children's rules differ enough that they deserve a check before booking any family trip. Blue Lagoon sets a minimum age of 2, requires floaties free of charge for children 8 and younger, and caps one adult at accompanying two children. Sky Lagoon does not permit children under 12 at all, and youth aged 12 to 14 must be accompanied by a guardian. Hvammsvík requires guests to be 10 or older. Forest Lagoon welcomes children until 20:00, requires a guardian for under-16s, and allows no children under 12 after 20:00. Vök Baths requires anyone under 16 to be accompanied by parents, with solo entry from 16.

Accessibility provisions run through every venue and are part of etiquette in a broader sense. Blue Lagoon's main complex is wheelchair accessible with elevators and a large shared changing room for guests needing more space. Sky Lagoon offers an Accessibility Suite, lifts into the lagoon and cold plunge, and an on-site wheelchair for the seven-step ritual. Vök Baths gives complimentary admission to an assistant for guests requiring help, as does Forest Lagoon. Earth Lagoon Mývatn offers a provided wheelchair from shower to lagoon.

Do The Rules Change At Glacier Lagoons?

Yes, completely. Glacier lagoons are not bathing sites, so the shower and swimwear rules do not apply, but safety rules replace them. The national park asks visitors to respect signs, fences and rails, and the search and rescue association warns that black sand beaches carry sneaker waves that surge with zero warning.

At Jökulsárlón and Fjallsárlón the relevant etiquette is distance and caution rather than hygiene. Vatnajökull National Park, which manages Breiðamerkursandur, notes that park rangers handle maintenance and supervision at Jökulsárlón, Fellsfjara and Fjallsárlón every day of the year, and the park's general instruction is to follow the guidance given by warning signs and respect rails and fences. The Icelandic Association for Search and Rescue publishes standing rules for black sand beaches at safetravel.is: stay well back from the water's edge, never turn your back on the sea, and keep children accompanied. Sneaker waves, in the association's own definition, occur with zero warning and can sweep an adult out to sea in seconds.

Swimming in the glacier lagoon itself is not what these sites are for, and our piece on whether you can swim in Jökulsárlón covers what is and is not permitted on the water. The boat tours that do operate there run under operator supervision, with the amphibian tours suitable for all ages and a 130 cm minimum height for the Zodiac.

The general safety net for the whole country is the same: emergency number 112, the safetravel.is conditions map, and the Icelandic Met Office forecast. Business Iceland's own advice is to treat warning signs, rails and fences as meaningful, because strong undercurrents at beaches, slippery stones at cliffs and waterfalls, and unstable ground at hot springs can all turn into life-threatening hazards.

Common Questions About Hot Spring Etiquette In Iceland

What Are The Rules And Etiquette For Visiting Hot Springs In Iceland?

Shower thoroughly without a swimsuit before entering, wear proper swimwear in the water, remove silver and copper jewellery, keep phones out of changing rooms, and follow posted signs. The naked-shower rule comes from Icelandic health regulation 814/2010 and applies at every pool and lagoon in the country.

Do you really have to shower naked in Iceland?

Yes. Article 9 of regulation 814/2010 requires guests to wash themselves without swimwear before going to the pool, and facilities must provide soap and display the instruction. Staff at municipal pools actively enforce it, and every major lagoon restates it in its own booking terms.

Can you wear a normal swimsuit in the lagoons?

Yes, swimwear is compulsory in the water at every venue. Forest Lagoon bans underwear, pants and sweaters, and Sky Lagoon requires bathing suits in the lagoon area and ritual. The naked part applies only to the pre-swim shower.

Can you take photos at Iceland's lagoons?

On the decks, generally yes, with respect for other guests. In changing rooms and showers, no: Sky Lagoon, Blue Lagoon and Vök Baths all explicitly ban phones and photography there, and Sky Lagoon also bans tripods, selfie sticks and professional cameras.

Will the water ruin my jewellery or hair?

Silver and copper jewellery can tarnish in sulfur-rich and silica-rich geothermal water, so both Blue Lagoon and Earth Lagoon Mývatn advise removing it. Silica can make hair temporarily stiff, and Blue Lagoon recommends applying conditioner before entering and leaving it in.

Is there an age limit at Iceland's lagoons?

It varies by venue. Blue Lagoon's minimum age is 2 with floaties required for 8 and under, Sky Lagoon does not admit children under 12, Hvammsvík requires guests to be 10 or older, and Vök Baths requires under-16s to be accompanied by parents.