The beach right across the street from the Kihei Akahi condominium is all you need on your vacation, but since you are on Maui, you should take a day to check out some of the other beaches towards the south.
Wailea's five beaches--Keawakapu, Mokapu, Ulua, Wailea Beach and Polo Beach--offer calm waters that are a swimmer's delight. Polo Beach, at the south end of Wailea, has been called one of the most romantic spots in the area. Snorkeling and scuba diving are prime activities in Wailea. The crescents of white sand may appear to be for the private use of resort guests, but on the Islands there's no such thing as a private beach, as the state law requires public access to all beaches.
Just south of Wailea, quiet Makena seems worlds away: it's one of the least developed areas of South Maui. The Maui Prince Hotel, with its 36 hole golf course, is the only major resort here. A number of beaches along the coast offer swimming, diving and surfing. Makena Landing, just off Makena Road, is a small boat launching spot. Makena State Park boasts beautiful, white-sand Oneloa Beach, nicknamed Big Beach. The whales return to Makena area waters each year from December to May, swimming quite close to shore.