This is a must do at least once in your life. I have always wanted to visit so I was happy to be able to on this trip. The highlight for me was the enormous Apollo rocket.
I was pretty disappointed with this excursion. I think the rainy weather had a lot to do with it. There wasn't much to do at Blue Lagoon if you didn't pay for a dolphin encounter. The tour of some celebrity's houses on the way back was nice.