Hike through the Bamboo forest

On the the road towards Hana about an hour past Paia.   Free activity, detailed directions posted in the Maui Trailblazer guidebook. You get to hike through the most amazing bamboo forest, walk up little streams, climb up to waterfalls ( have a bad leg, back or knee? this is a manageable hike for most anyone)  really gets you out of the touristy areas, and enjoying the tropical nature of Maui.

Sunrise bike ride down Haleakala Or Visiting Haleakala in a Car

This one speaks for itself!   see the sunrise over the ocean from atop a 10,000+ foot volcano and then ride a bike down the mountain and enjoy the scenery.  Amazing trip. And you are going downhill so no pedaling required!  Just cruise down the volcano (on a paved road) and enjoy the beauty of Maui, look out and see Lanai, and Molokai. Gorgeous activity for anyone traveling to Maui! The bike tours do not start until one is out of the National Park boundary; due to a number of injuries and several fatalities, the NPS banned tours from the Park in 2007. 

You can also drive yourself and enjoy the many other sights in the Park. The Park admission fee is 10.00 per car and is collected by the Park Rangers at the entrance. This payment entitles one to three days of access to the entire Park--part of which is located near Kipahulu, beyond Hana town. Save the receipt and you won't have to pay a second time if the timing's right.

 Remember that one will be at high altitude here; take your time, bring plenty of water, and dress appropriately. The summit can be in the 20-30 degree (F.) range at sunrise, and the winds are often upwards of 30MPH. 

Snorkeling & Whale Watching trips

There are many excursions for whale watching and snorkeling on Maui. The boats range from small RHIBs (rigid hull inflatable boats), to sailboat, to double hulled catamarans, and to large boats. Popular companies include Trilogy, Blue Water Rafting, Four Winds, Paragon Sailing, Gemini Sailing Charters, Teralani, Island Marine, and Pacific Whale Foundation.There are trips which depart from the South side at Maalaea Harbor, the West side at Lahaina Harbor, and the beach at Kaanapali.

The catamarans like Trilogy, Teralani, Paragon, and Gemini limit their trips. Paragon only takes 25 people; the others range from 49-55. Pacific Whale Foundations boats are the largest and take the most people. There are also very expensive options like the Aikane V and other private or nearly private charters. 

Restaurants:

Paia Fish Market - located out in Paia- known for their fish tacos and you get the bonus of a cute little town to walk around after you eat. Paia town is at the beginning of the Road to Hana.  Definitely worth stopping by if you are headed that way. Other good spots include Milagro's, Paia Flatbread, Charlie's, Mama's Fish house (just outside Paia), Max Bistro in Haiku.

Kimo's - fish dishes OR Prime Rib (and be ready to share with someone though because it is like 32 ounces).  They also have wonderful Mai Tai's and other island drinks.  Typically have live music on wed-sat in the afternoon/eve.  Located right on front street in Lahaina, Maui. Other restaurants in Lahaina town include David Paul's Island Grill, Lahaina Pizza Company, Pacific O, Io Cafe, Pioneer Inn, and the food court at the Cannery Mall.

In the Kaanapali area, restaurants include Hula Grill, Cane and Taro, Leilani's, Japengo and Umalu (at the Hyatt), Castaway's Cafe, Duke's at Honua Kai. Farther up the highway are Honokawai Okazuya, the Honokawai Fish Market, Maui Brewing Comoany, Roy's, Napili Kai Sea House, the Gazebo, Cafe O Lei at Napili Shores, Pinapple Grill, Merriman's, and the Plantation House. Don't forget to check out the restaurants at the Ritz Carleton Kapalua and the Honolua General Store too.

 Luaus:  If you want to attend a luau, the Hyatt has a giant all you can eat buffet and open bar to enjoy during the luau performances. Around $95.00 a person and is right in Kaanapali.   If you are in Kihei, Kapalua, or Lahaina, there are a number of luau spots and there are few that aren't great!  Most have open bar, large buffet and great  performances of different dances from around the South Seas area. The most traditional commercial Luau is the Old Lahaina Luau. It does not have fire dancing (which is Samoan). Other Luau venues include the Feast at Lele, the Royal Lahaina, the Grand Wailea, the Marriott Wailea, and the Polynesian Family Luau at the Maui Lu in Kihei.

And of course, spend at least one (or two or three!) days with absolutely no plans.  Veg out on the beach, tan, hang out in a hot tub, have some mai tais and relax, you are in MAUI HAWAII!