I've done quite a bit of boat diving at Catalina over the summer and fall, and thought I could pitch in with a couple of thoughts. Blue Cavern is a beautiful site, but consider it for a live drop- there is a small white buoy that marks the entrance to the cavern (I believe on St Brendan's it is marked as the "overhang"). Drop down the line to the bottom facing the wall (about 75') and swim directly to the entrance. You can swim into the cavern about 30'- it's very dark and you need a primary strength light (at least 4C/4D) to see. After exiting you can continue along the wall, return and exit at the buoy. You can have a similar, beautiful wall dive along the west and north sides of Ship rock. Another option is the north wall at Bird Rock. All three of these are within 5-10" of each other. If the current/wind pick up, you can head up to the West Rock Quarry for the 3rd dive.
As for the Island Time- it's like a sports car- built for speed, not comfort. The food was more snacks than meals. There isn't a cabin, just bench seating along the sides in front of the tanks. A few people can sit up on the flying bridge, great view. Make sure you don't try to use the head while underway, it is directly in the bow and you can get slammed around! Last, there are only a few tank holders that can accomodate tanks with a boot.
Have fun!
As for the Island Time- it's like a sports car- built for speed, not comfort. The food was more snacks than meals. There isn't a cabin, just bench seating along the sides in front of the tanks. A few people can sit up on the flying bridge, great view. Make sure you don't try to use the head while underway, it is directly in the bow and you can get slammed around! Last, there are only a few tank holders that can accomodate tanks with a boot.
Have fun!