Blue Lagoon, the biggest thermal pool in the world

http://www.bluelagoon.com/
Booked a packaged with Reykjavic Excursion, the last departure from the city 20:00 (ISK 10,500 booked at the hostel, including pick-up to nearby place to the hostel).
https://www.re.is/day-tours/blue-lagoon
Was happy could go, especially to heal my feet after 6 days trekking.
They were doing construction for expansion at the time I was there.
Can drink beer or cocktail in the pool.
They give you an electronic plastic bracelet for entrance and purchasing inside the pool.