Blue Lagoon offers safe luggage storage where you can store luggage of all sizes. The luggage storage is placed at the Service Center next to the main parking lot.
The luggage storage has same opening hours as Blue Lagoon.
There is a staff member that takes care of the luggage, you will be given a number for your luggage that you keep while you are in Blue Lagoon and you hand it back in when you pick up your luggage.
Here you can find the price for the luggage storage: http://www.bluelagoon.com/blue-lagoon-spa/how-to-get-there/
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+354 420 8800