Yeah, the food is not tops, but we didn't go on this excursion for the food. We went for the beach.
I loved the lagoon -- it is a nice inlet that only reaches about 4-5 feet in the center. No waves, very gentle and if you bring a mask, you will see some pretty little fish.
The water temp was perfect and we spent hours just floating in the lagoon. The salt concentration is quite high and it was easy to float. We love Blue Lagoon.
Kris