re: Activity Rec's for Kau'i & Maui

Went on our honeymoon for 7 nights in Maui back in Feb.
5 in Ka'anapali and 2 in Hana

Rented a jeep and drove everywhere.

Things we did:
-Spent time in Lahaina for Front Street. Awesome little town
-Surf lessons at Royal Hawaiian Surf Academy in Lahaina
-Sail to Lana'i with Trilogy Tours. Manele Bay is absolutely stunning.
-Sunrise bike tour on Haleakala
-Old Lahaina Luau
-Jumped off Blackrock at Ka'anapali Beach
-Road to Hana. The long way around the NE side of the island through Kapalua and Kahakuloa. Stopped at Nakelele Blowhole, Olivine pools, black sand, red sand, pipiwaii, ohe'o gulch, Hamoa Beach etc. etc.
I'd recommend staying 1 night in Hana if you can swing it. Totally worth it, so you aren't having to turn around and drive back the same day. Can take your time. Hana is an amazing place.

People have mentioned Maui revealed. It's good.

I bought an app (for $9.99) called Gypsy Guide - Maui
Has a tour of the entire Island on it. Totally worth it

Places to eat: Mama's, Dukes, 808 Grindz Cafe and Sunrise Cafe for Breakfast. I've heard Sansei for sushi, Lahaina Grill and Merriman's are all great.

Things we'd 100% do again.
Bike tour, and Sail to Lana'i for sure.
And we'd stay in Hana longer than 2 nights.

ETA: If you're in Hana on a Fri or Sat night, check out Hana farms. It's BYOB and they make pizzas in outdoor stone ovens from scratch using all ingredients grown right there on the farm. Delicious stuff.