Though I did not participate in this excursion, my partner did. He enjoyed it very much. He said that the kelp beds were impressive to see, and that he had the opportunity to free dive approximately 10 - 15 feet as well as snorkel. When I asked if it was worth it - he replied that it most definately was worthwhile! He also stated that he was not at anytime cold (that was why I didn't participate - fear of freezing!) Hope this helps anyone who might be thinking of this excursion.