We just retuned from our Maui Kauai Honeymoon.
We spent 5 nights at the Sheraton Maui which is loacated on the best part of the beach, but the Hyatt is nicer and a little closer to town. We rented snorkle gear in town for $5 a day. Drove the road to Hana a full day trip and stay away from Blue Pool!!!! The land owner is nuts and if I was not on my honeymoon I would have laid him out for calling my new wife a c_nt. We filed a report at the police station. There is a long story as to why he is such a jerk. I recommend eating at Kimo's, very good service and food. We drove as far as the blowhole in west Maui as we hear the road was pretty bad after that. We did not get to see the sunrise at the crater

We did the Old Lahaina Luau, which was the best, the food was top notch. Make reservations in advance.
We spent 4 Nights in Kauai at the Hyatt

We have stayed in a lot of hotels and resorts and this was one of my favorites. It seem to have everything just right, not stuffy fancy and not too plain. The rooms are nice, we were upgraded to a partial ocean view facing the pool. The pool and grounds are fantastic, it is hard to leave the hotel. Use the valet parking and buy beer in town for the pool, $6 for a poolside beer. We went on a helicopter tour (Blue Hawaii) which was the highlight of our honeymoon IMHO. We drove the North shore, but did not spend enough time checking everything out. Drove the south Shore and the Waimea Canyon roads. Also took an off road trail with our jeep wich was nice since we got to see the napali coast, but we got covered in red dirt, it ruins everthing. There is not much nightlife except hotel bars in Kauai. Eat Tidepools at the hotel and the hotel buffet is pricey $27 PP, but the egg sandwich on the menu was killer(literally)!
Bring good sunblock and a wide angle lens.
If you have any questions, give me a shout.
Road to Hana
Maui Coast
Steve