Lehava:

If you do do a jump, a day trip to the Big Island to see the volcanoes is probably the one "must do" thing for a Hawai'i trip that you can't do on Oahu. That's one of the big things associated with the islands and if you don't know when you'll be back, you'll be glad you saw them as there are few other places on Earth to experience something like that.

Otherwise, if you can pull an overnight on Maui, the Road to Hana is just one big "Oh, wow.' I wouldn't try to do it as a day trip, though. If you get very lucky, you might be able to find a hostel or cabin in Hana that has an open night (that's what we did) or otherwise you can try to get a room at the one hotel in town.

TA:

We did the Feast at Lele in Lahaina. Unlike most lu'aus this is a table-service meal. While it's expensive, the food is unbelievable, and the show is stunning. We went on our anniversary and they gave us a table front-row center. If you and/or your parents haven't been to Hawai'i before, a lu'au is one of the classic island experiences and as our hotel guide pointed out, a trip to Hawai'i is a once-in-a-lifetime experience for most visitors.

While it's not cheap either, if you want to see some of the sea life and aren't big on diving, I also highly recommend the Atlantis passenger submersible tour in Lahaina. There're coupons and stuff for it if you look around.

M