The British hook up in pubs, the Frenchman has a rendezvous in a café, while the Finnish is sweating in a sauna: In Iceland, the swimming pool is the center of social life. That's were people meet. Usually outside. No matter whether the sun is shinig or it is raining and snowing.
Warm thermal water is available in abundance in the country, no wonder, that even the smallest has a swimming pool.
On my Iceland round trip I had the chance to visit some of them and I even took a bath in the sea about 100 km away from the polar circle - it is really possible, at least with some little trick.
Admission fee: 300-400 ISK
Differnt bathing habits: No catlick, please!
Coming in an Islandic swimming, you first have to put off your shoes - as you have to in hostels and pensions.
Germans might be a bit unused to that: You are expected to take a shower and clean your body with soap (that is available for free) WITHOUT swimsuit before you enter the pool
If you do not follow this rule, you should be prepared to hava a good excuse, as staff will probably rebuke you.
Swimming in the sea in Reykjavik
Unbelievable, but true: A few meters to the south from Reykjavik's domestic airfield there is a beach and a little swimming bay. The high tide pushes fresh water into the bay everyday, which is continuously heated by hot thermal water pumped into the sea. That's why it is possible to enjoy the sea at 25° C all the year round.
If you are a frostbite and that is definitely too cold for you, just relax in the 40° C warm water of the hot pot at the beach. Next to the showers and changing rooms, there is another hot pool (in rectangle shape) that is wating for you!
Free admission!
Akureyri
In Akureyri, a big city from an Icelandic point of view, there is a modern and diversified swimming pool with multiple hot pots, two slides and two bigger pools.
Here, me and my friend Samuel from Toulouse were involved in a conversation by two 11-year-old boys who were proud to show us their doubtlessly remarkable English skills. After we did a little quiz with them, they even found out the countries we were coming from. 
TIP: There is a little "coop" in the garden with a steam bath inside!
Vik
The Vik swimming pool is very small. There is a hot pot, a bigger pool, about whose size I discussed with the locals (approx. 15 meters we guess), and a third, smaller pool that was closed at the time of my visit.
After the locals left me, I was the only guest left. I have never been alone in a swimming pool, have you? 
Höfen
Mostly tourists staying in the youth hostel next door are hanging around here and enjoying a big swimming pool and several hot pots until they are heading to the glacier next day.
