We went to a Luau here and it was nothing short of amazing! If you don't decide to go to a Luau here, we highly recommend attending one while you are visiting.
On the north end of Ka'anapali Beach in West Maui, there is a big black rock that many people jump off of and into the ocean. Would highly recommend on your next beach day! There is also an option to go snorkeling in the area
This is one of our favorite places to eat on the island. Specifically their crab wontons and mai tai's are a must. You can ask to get a table in the sand, which is our favorite.
The Road To Hana! This would involve having a car, but it is such a beautiful sight if you want to relax and go on a scenic drive
This activity is a bit farther out in Haiku. But it is absolutely gorgeous. I believe you do have to pay for parking once you get there, and you can swim in this water.
A fun snorkeling activity where you get to see turtles, fishies and sometimes dolphins. They include a sandwich lunch as well. This will take up about 5 hours of your day.
Snorkeling activity, that is not as long as Molokini and you primarily will see turtles and fishies. Includes - breakfast, lunch and soft drinks!