The Blue Lagoon in Iceland seems to get a lot of the travel buzz, but this little gem should be the top of everyone's list. A Natural Spring, Laugarvatn Fontana is a quaint lake side thermal spa that houses 4 outdoor pools and if memory serves, 4 saunas (both wet and dry). You can even go take a dip in the lake if you'd like, but there are warnings to not swim too far as parts of the lake are actually boiling. The Spa also serves up a delicious lunch, worth the money. There's even a soup only version of lunch that is for those trying to watch pennies. The spa also bakes lava bread - bread that cooks underground for 24 hours and as God as my witness it is like nothing else on earth. For a surcharge you can go out to experience the phenomina, or come early, as the bread is served with lunch. The thermal spring is included in several Golden Circle tours so whether self-driving or on a group tour, it's definitely possible to fit this gem into your Iceland visit. Note that there are no spa services here (e.g. massage), but that shampoo and conditioner are provided for your showers. You are required to shower naked and there is only one private shower stall, so if you come with a group, plan your departure for the change room accordingly if you need privacy.