THE BLUE LAGOON
This manmade geothermal hot bath is usually the #1 or #2 item on everyone's Iceland bucket list. People love this place! And, it's only a 20 minute drive from the airport. Traveller just passing through Iceland on a longer layover usually stop in here even if they don't do anything else while in the country. The lagoon is also only 45 mins from Reykjavik. There are shuttles from both places. If you are doing a longer stay in Iceland, then my recommendation would be to go here last. After all the adventuring, this will be a very welcomed experience before getting back on a plane to fly home.
It took me a minute to warm up to the idea of wading in warm (not hot, hot), milky water with a hundred or so other strangers. But, once I got used to it all, it was quite relaxing! This is basically the most amazing hotel pool in the world. It is run like a day spa with saunas, restaurants, cafes, lockers, showers, etc. You will want a towel so be sure to bring one or you can rent one there. There is a lot of free silica bud in buckets around the pool so be sure to try out a face mask. I highly recommend bringing a backpack with items to to change into and clean up with after your stay here!
It is important to point out that many people complain of the milky water and silica mud ruining their hair and making it straw like. The biggest tip I received was to lather my hair in conditioner before entering the lagoon. The conditioner asks a barrier to all of the minerals. Whether this worked, I couldn't know for sure without going in without conditioner to compare, but I walked away without ruined hair. There is conditioner in the showers, and you are asked to shower first anyway so I think its a why not situation. Lastly, you should never wear expensive sunglasses in water anyways (rust/tarnish issues), but especially not here. Bring a cheaper pair!
As you can see from the pictures, it was quite overcast and rainy while I was there. In Iceland in general, you can experience all four seasons in a single day. The weather is quite volatile and highly unpredictable. But, don't let bad weather deter you from checking this place out. Even with a little rain, this was well worth the experience. Just grab an expensive drink at the bar. Alcohol in Iceland is typically VERY pricey and not always easy to find so sit back and relax with a cold one!
WHAT TO BRING WITH YOU!
Make sure to buy your tickets in advance. It is required!