Notabob,
This info is way to late for you, but might be good for others looking at this thread
Try the Nimrod. It seems to have the best arrangement and max dive time for the Ribbon Reefs, Cod Hole and Coral Sea. I haven't been on it yet so can't tell you if my impression is correct. They either fly you up to Cooktown before you board the boat or fly you back from there (low level flight). This cuts out a huge section of sail time hence more time on the reef plus you get a great birds-eye-view. You can find them at
www.explorerventures.com
As for the Atlantic Clipper (run by Downunder Dives in Cairns), I just came back after 4 days on it, diving Norman, South Norman and Saxon reefs (GBR) and thought I'll leave some comments here for anybody looking to dive with them in the future.
You're probably wondering why dive at these outer reefs and not the northern reefs, Cod Hole and the Coral Sea. We plan to do that, later, but first my girlfriend needed her certification, hence the Atlantic Clipper.
Firstly, I should say that despite the fact that the boat caters mainly for new / inexperience divers, I myself had a fantastic time. Granted the reefs are not as good as those in the Coral Sea, the water not as clear, and I didn't see any Mantas, sharks (well, one 2m'ish White Tip at ~15m), or many turtles (saw a small Eagle Beak once in 15 dives). However, there were still loads to see, especially if you were an underwater photographer. I got shots of 5 different species of Clownfish alone. Lots of friendly Batfish that actually swam up to us on the surface, several Giant Travallies, a large variety of Parrotfish, a few small sea fans, plus a few nice swim-throughs.
The boat was very nice, being a large ocean going sailing freighter it was extremely stable. Ideal for those that get seasick easily. The staff were very friendly, attending to our every need, and as on most liveaboards the food was fantastic (alcohol not included but you can buy that from the bar). I loved the spa on deck, especially on a sunny day after a dive, and the air-conditioning throughout the boat was great considering the temperatures outside.
They were also very safe as well, with a lookout keeping an eye on all the divers at the front of the boat, and another to clock everybodys bottom time and depth on every dive. They go by the PADI table and a few people actually got banned from diving for 12 hrs for exceeding their bottom time. However, they ARE NOT used to people diving with COMPUTERS, which I found very strange. However, if you were diving with a computer then youre responsible for your own dive times and are not restricted to the tables. However, if your buddy didnt have a computer theyre still restricted to the tables. At least one certified diver got caught out with that and was banned for 12 hrs.
They provide all gear in the price. I brought my own anyway (but no discount). From what I could see their gear is pretty up to date and good quality (a variety of brands, but all look fairly new, middle to upper-middle range), except the fins. If you had your own fins bring them. They only have cheap full foot fins.
Oh, another thing. The dives are not guided. But with the reefs being protected with little current there really wasnt any need. A guide could be arranged for $10 a dive.
Now a little about their OW course. My girlfriend did the OW + Advance combined. That kept her pretty busy while she was out of the water with theory and debriefings. However, they had the course organised pretty well. The first 2 days were done in Cairns at their pool, including their medical. Contrary to what Ive been told by others to the quality of dive medicals in Cairns, the doctor they used was very thorough and knowledgeable in dive medicine. They were also very strict without cutting any corners with neither the course teaching nor the medical. After the 2 days on land it was followed by 4 days on the boat. The open water part was pretty standard, but once they were certified they had to plan their own dives, which I though was pretty good. Theyre also allowed to do night dives as OW, usually with a guide.
The instructor, Louise Utting was very good, much better than the instructor I had for my OW and Advance (with 2 different companies), and the pool at their Cairns facility was well designed for the OW course. I was pretty impressed with how quickly everybody got the hang of diving. The only thing I think they should have done but didnt was to teach the students about gear maintenance. Everything was done for them. They didnt even have to wash the regs neither after the pool sessions nor the dives (on the Atlantic Clipper they didnt even need to dismantle their gear. Everything was kitted up permanently)
Overall I think their operation was pretty good. I wont go back myself as therere much more interesting dive sites around for the same price, but I definitely will recommend them to anybody wanting to learn to dive or people whore not confident with their diving.
For those interested, herere some links to the photos I took during the trip.
Openwater Course - Day 1:
http://www.imagestation.com/album/?...030252&mode=invite&DCMP=isc-email-AlbumInvite
Openwater Course - Day 2:
http://www.imagestation.com/album/?...030061&mode=invite&DCMP=isc-email-AlbumInvite
Atlantic Clipper - general shots out of the water:
http://www.imagestation.com/album/?...030076&mode=invite&DCMP=isc-email-AlbumInvite
- Basically all the shots not taken on / in the water.
Atlantic Clipper day 1 - Saxon Reef:
http://www.imagestation.com/album/?...030068&mode=invite&DCMP=isc-email-AlbumInvite
Atlantic Clipper day 2 - Norman Reef:
http://www.imagestation.com/album/?...030071&mode=invite&DCMP=isc-email-AlbumInvite
Atlantic Clipper - Night dive at Norman Reef:
http://www.imagestation.com/album/?...032167&mode=invite&DCMP=isc-email-AlbumInvite
Atlantic Clipper day 3 - South Norman Reef:
http://www.imagestation.com/album/?...030069&mode=invite&DCMP=isc-email-AlbumInvite
Atlantic Clipper day 4 - Saxon Reef:
http://www.imagestation.com/album/?...030074&mode=invite&DCMP=isc-email-AlbumInvite