I've done one dive trip with Riviera. It was not the wreck dive but two reef dives off Laguna. I would maybe consider going with them on the wreck dive but not the reef dives again. We used them on a weekend when an out-of-town friend was visiting and all our standard boats were full or on multi-day trips. We live in LA so driving down to Dana Point really didn't make much sense. And coming from our direction we drove past Laguna only to motor back up to it. We dived two reefs off Laguna not far away from where we shore dive. Besides the three of us experienced divers there was one other experienced diver, 8 students and 3 instructors for a total of 15 divers on that small boat. With the students there was gear all over the deck, you could hardly walk without stepping on it. The dives were okay, maybe a little better than typical Laguna beach dives, but not nearly as good as Catalina or other Channel Island dives. The two crew were great and very helpful, we even went for beers with them after diving. But we told them that they put too many divers on that little boat. I guess if you are down in that area and you are really short on time getting in two dives with them in the morning wouldn't be a bad way to go but if you really want to get in some good California diving I'd make the effort to head up to Long Beach or San Pedro and do a boat to Catalina.
