This is a natural playground for locals and tourists alike. There is hiking, historical sites, "cliff" jumping, pool swimming, and interesting people watching. Use extreme caution before jumping into the pools - check for hidden rocks and depth of pool first. NEVER dive into the pools. Lava rock is VERY slippery when wet. The area is always crowded on weekends. Even though there is a large gravel parking lot, it is often full. Come early to get a spot or stay in Hana to assure an early arrival.
The Pipiwai Trail, above the Seven Sacred Pools, is one of the best hikes on Maui. It is 4 miles roundtrip, gaining 650-feet in elevation. It takes 2 1/2 - 5 hours to hike, depending on how much nature loving you do.
Along the Pipiwai Trail is Infinity Pool. It has a row of thick rocks that keep you from plunging over the 200-foot waterfall during normal flow times. This pool is much more secluded than the more popular Seven Sacred Pools.