On the South Western side of Maui, with gorgeous views of Molokai and Lanai, is the famous and fabulous historic whaling town of Lahaina.
On the drive to the West side of Maui you will be treated to spectacular views of Lanai and Molokai islands not far off the shore. After driving across the 'pali', or ocean-side cliffs, with several pull-offs that regularly sport views of breaching Humpback Whales or dolphins.
You then descend into the Oluwalu plain with long beaches, gentle waves and Keawe forest. Choose a beach and take a break! From Oluwalu town, with a little store and French Restaurant, you only have about 7 minutes till Lahaina.
Lahaina is going to take some time to drive through, so if your B&B is in Ka'anapali or beyond, just stay on the main drag through town.
Ka'anapali, Kapalua and Napili are other small towns in the Lahaina Area. There are resorts all along the coast between Lahaina all the way to Napili. Simply amazing views to be seen especially during sunset which is always breath-taking.
There are a few nice little beach parks between Lahaina and Kaanapali. Though certainly not the nicest beaches around, these parks are small, convenient and occasionally deserted. Beyond this, you drive for some miles through highly manicured, and gorgeous, landscapes; through one resort area after another until you get to Kapalua. There are beach roads through this area and, if you are not in a hurry, it is worth the detour if you are also seeking fabulous beaches in which to play.
Out beyond Ka'anapali there are many gorgeous soft, white sand beaches, though some of the best are difficult to access as they are in front of a resort. Still, with easy public access, you will find many coves and beaches along the way to Kapalua where Fleming Beach Park is certainly worth a stop.
The beaches in West Maui range from rocky to spectacular. Oluwalu area beaches are popular for a variety of reasons. The location is great in that, if you stay on this side, there are miles of beaches on your way out and then again on the way back. And as you can drive right up to the beach at most of them, it is an easy place to take in another quick swim on your way.
For those of you who, like myself, get tempted to take the "short cut" on around the north end of the island... Don't! It not only actually takes much longer, but it may also take a few years off your life! Too many people, who live out here, drive BIG trucks much too fast, on a road that is much too often, not wide enough for your car too! While it is true that there are some great hikes out here, as well as many fabulous views, I highly and quite sincerely suggest that you put this area low on your list. There is just so much of Maui to see and experience that you will have to stay here quite awhile, to find yourself bored enough, to justify a drive on this road. Anyway you have been warned.