I spent a couple of hours here with my 10 year old sun on sat 11th March. Our tourist picked us up at 11am so got to the blue lagoon just before 12. There was a que to get in but we didn't wait too long. We both got a wristband that locks your locker and you can use it to buy drinks at the bar. You get a free mask at the mark bar aswell which is nice. You can depend as long as you want there and trust me you will want too. The water is soo warm and lovely. A bit of advice when showering before you go into the lagoon, wash your hair and put conditioner in it and tie it up on top of your head then rinse out conditioner in shower after, that way your hair is protected from the water.