If you've done any research, you know that the Blue Lagoon is man made. It is the run off from a nearby power plant.
Don't worry! The silica and sulfur in the water are said to be great for your skin.
Cost: 45 Euros
You can't go to Iceland and not visit the Blue Lagoon. It's the most popular tourist destination in the country.
Go on your first day. It's relaxing and will allow you to cope with your jet lag. You're not going to be doing anything particularly productive any way.
The employees at the Blue Lagoon give great advice for restaurants and sites.
You can put clay on your face and give yourself a facial... Make sure you take it off for pictures through.
You'll get some great photos granted you wipe the goo completely off your face. (See above.)
And finally. It's not a true vacation unless you've been ripped off.
You in the warm water of the lagoon, put goo on your face and relax. The water is a striking bright blue. People are polite and respectful of your space.
Get tickets prior, so you can stand in an expedited line. If you have a friend that lives in Iceland, you can get a resident discount.
You'll get a bracelet. Don't loose this. It will allow you to purchase drinks and lock your locker.
They have showers, but you should remember to bring a towel.
Other things to bring: bottle of water, cheap sunglasses, flip flops
The best time to go to the Blue Lagoon is on the first day you land because of the proximity to the airport.
Don't expect it to be totally desolate like in photos online. There will be a moderate amount of people, especially in high season. That being said, you and your friends will definitely be able to find a spot to hang out in if you want some space.
If you don't end up going on the first day, I recommend doing a joint tour. When researching these tours, be sure to check if the entry fee is covered by the tour.
Below are a few options:
If you're hungry, there are a few cafes at the Blue Lagoon:
If you're coming from the airport, you should definitely grab coffee from Joe & the Juice beforehand to combat jet lag.
Sure, it's 45 Euros, and there are plenty of free geothermal pools in Iceland. If you'll regret not going to check it out, you should go because it is quite a relaxing experience.