I was on the Bilikiki in April 06.
I have the following observations:
- After the "leave at midnight flight" to Fiji from LAX, after spending the day getting there, as well as the oh so comfortable airplane seating, I'm pretty wore out after arriving. YMMV.
- If you are history inclined, particularly WWII, then there is enough to do for a day.
- We spent the extra day in Fiji, then flying onto the Solomons via Vanuatu, arriving on boat departure day. I love Fiji and there is time to kick back but not much else.
- The Bilikiki picks you up and puts you in a hotel until midday when prior guests are off and you get on. There is time to go for souvenirs if you want. Wood carvings are very nice and reasonably priced.
- Most importantly, I wouldn't be surprised if the airline schedule changes again.
- I'd be particularly leery of cutting your schedule too close. The entire area, starting in Fiji, is on island time. Planes leave at different times, people get bumped by important people, your important concern isn't always the concern of the staff, planes are cancelled, changes to travel are made through local agencies which have unfamiliar schedule for doing business, weather rolls in, luggage is lost, etc. You can't count on the schedule to the degree which it is adhered to in the states. Nowhere near. Or everything could be fine.
Up to you, but my concerns go: getting on liveaboard, everything else.
As for the Bilikiki, we had an excellent time. Beautiful locations, some stunning. Hope you get out to Mary Island and the volcano. It was thumping us in the chest throughout the dives. Tip: the video camera doesn't get all the low frequency sound that you hear. You get tropics rain: Sun, rain like Hades, sun again. Excellent experiences around the native people. Real living in a hut on stilts next to the water. And laugh?! Nobody can be happier than the kids in their worn clothes, swimming like fish. A quick experience: I kept hearing childrens voices at dinner when we were anchored. Came out for the night dive; there were about 25 kids sitting all over canoes and the dive skiffs, silently watching us. We suit up, under observation, get in the dive skiff. Everybody watching. I point to my head and say what the kids are thinking: "crazy". Everybody laughs. Watch out for the thermocline between the upstairs and the cabins. And watch out for the railing down to the cabins. I think that's how I caught another members illness near trip end.