Alright, here goes... As I stated earlier, we booked this with Big Island Divers. What a class act this shop is. I *highly* recommend them. We did the 2 tank manta dive, the first dive was just before sunset. We saw whales very close on the way out, saw some dolphins spinning out of the water - both were very cool. We get to see dolphins a lot over here on Oahu, and we have been hearing the whales sing when we dive, but it is never anything less than spectacular to see either. The first dive was nice, the corals were much better than some places off Oahu. We had 2 mantas come cruising by towards the end of the dive. I was completely OK with not seeing any on the second dive after seeing 2 on the first dive, ha! But, our luck was even better. As the sun started to go down, several other boats came around. Our first thoughts were "crap, too many divers around", but in the end this was a good thing. Before it got totally dark, the lights they had set out for us began attracting mantas. They dropped a couple of lights below the boat and we had about 5 of them doing summersaults under/beside our boat. OMG, this was about to make us all scream! We got into the water and there were so many swimming around us, I could not count how many there were. There was a lady who videocams the dives for money, and she counted 19 she told us later. She recognizes them from their markings, they are obviously all marked uniquely different. You could have told me there were 50 and I would have believed it. Now, I've done quite a bit of diving, in many different places. I would still have to say that this was one of the coolest dives I've ever done. If you can make this happen, take my word for it - do it! I'm usually not into the touristy kind of thing, but again, do this dive! Oh yeah, another plug for Big Island Divers - they gave us sandwiches and had a cooler full of sodas and water. After the night manta dive, we were all a bit chilled. I don't usually get cold but only brought my shortie wetsuit over and was chilled. The guys on the boat broke out some thermos's of hot chocolate which just topped the night off. I highly recommend them. Ask for Luke or Mikey (I guess there are 3 or 4 Mike's there, they all have their own designation). I'm trying to remember the boat captains name, but they were all awesome. The boat was clean, had a really warm shower off the back, all were top notch. If anyone wants to see some video, send me a PM and we can work it out, at least until I can figure out how to post video here....