CityBuddy
Blue Lagoon (Bláa Lónið) – famous geothermal spa near Grindavík (serves many Keflavík visitors)
Best time to visit
Early mornings offer soft light and noticeably fewer people. Evenings are atmospheric as steam and lights rise, and winter visits increase chances of seeing the Northern Lights.
Budget tips
Standard admission usually starts around €60-€100 depending on season and time, premium packages cost more and add towels, masks and drinks. Bring your own towel to avoid rental fees and book online several days ahead for lower-priced slots; check combo tickets that include airport transfers for modest savings.
Recommended for
Spa and wellness seekers, Couples, Photography enthusiasts, Travelers with a long layover
Plan your visit
2-3 hours
About
Quick facts: Milky-blue geothermal water stays around 37 to 39°C, feeling silkier than many hot springs due to its rich silica and mineral content. Pools and wooden walkways rest among black lava fields, with the facility circulating millions of liters of mineral-rich water daily from nearby geothermal runoff.
Highlights: At twilight, steam plumes hover over the electric-blue water surface, creating an almost otherworldly glow against the dark lava that photographers seek during golden hour. Visitors often apply chalky white silica mud to their faces for 10 to 20 minutes, letting the gritty paste dry to a matte mask before rinsing it off to reveal noticeably smoother skin.
Insider tips
- Book the first or last entry slot of the day to avoid peak crowds and enjoy quieter pools.
- Leave metal jewelry in your locker before entering, silica and minerals can cause discoloration.
- Carry a plastic bag for wet swimwear and a small headband to keep hair free of silica mud.
- Use the boardwalk near the changing rooms for classic photo angles of blue water against black lava and the ocean in the background.
Where to Stay in Keflavík
Selected by City Buddy based on guest reviews and proximity to top attractions
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More attractions in Keflavík
Viking World (Víkingaheimar) – Víkingasafnið með víkingaskipinu Íslendingi
Duus Museum (Duushús / Duus Safnahús) – local history & art museum in Keflavík
Icelandic Museum of Rock 'n' Roll (Keflavík Rock Museum) – music museum dedicated to Icelandic rock
Keflavík Harbour (Keflavík Old Fishing Village) – waterfront, restaurants and boat views