12 Healing Volcanoes: Thermal Adventures for Wellness Seekers

3. Blue Lagoon (The Retreat) — Iceland

The Blue Lagoon is often the first name people think of for Icelandic geothermal bathing. It blends dramatic lava-scarred terrain with milky-blue, silica-rich waters that stay comfortably warm year-round. The complex draws more than a million visitors annually and includes a range of experiences from standard lagoon entry to The Retreat, which adds private lagoon access and curated spa programs. The waters are generally maintained around 40°C and are marketed for relaxation and skin-care-focused treatments. Keep in mind that many health claims in travel coverage aren’t backed by large peer-reviewed studies; the Blue Lagoon’s popularity owes as much to scenery, convenience, and well-run facilities as to any single therapeutic guarantee. If you prefer quieter soaking, consider booking early-morning or late-evening slots, or explore lesser-known baths elsewhere in Iceland. Pricing can range widely; premium packages may include private areas and extra amenities. For practical planning, pack a swimsuit, waterproof sandals for slippery walkways, and an extra layer for chilly transitions out of the water.