We had a few interesting stop prior to the Blue Lagoon: one which was a hole in the ground with a ladder decending into it. As we couldn't see where it was leading we chose not to go down.
At the Blue lagoon we walked a path through lava hills to the entrance where were directed to our entrance line and proceeded through quickly. We were given a wrist band that electronically locks our locker and acts as a charge card that tallys all purchases made in the Lagoon.
The Blue Lagoon is a beautiful hotspring. The blue colour is a caused by silica, algae and minerals. 90 million liters flow through the blue lagoon renewing the water every 40 hours.
The water was wonderful. The average temperature in the Lagoon was 38°. The water was opaque. You couldn't see 6 inches into the water. We spent several hours here. On the outside of the lagoon were some smaller pools of the same water.
If my sore legs, my bruised head and arms don't ache to much tomorrow, our intention is to see some waterfalls.