About a 20 minute drive south from Maui Vista is a small (and not very secret) beach that is a popular site for weddings. While small, it’s never crowded. There are usually lots of turtles off the rocks to the right and left of the beach. Not a great place to swim, but wonderful for relaxing in a beautiful spot. A word to the wise: there are no facilities at Secret Beach (no water, no showers, not even a porta-potty).
To get there, drive south through Wailea and past the two entrances to Big Beach at Makena State Park. A low lava rock wall starts near the east end of Big Beach. The wall quickly grows in height so you can’t see over it to the presumably lavish residences on the other side. When you see a small break in the wall (see picture below), you have arrived.