La Perouse Bay is located on literally the tip of Maui’s South shore, in the Ahihi Kinau Natural Area Reserve. It has a very rocky shoreline, and several small coves that hide between rocky points (these coves are usually covered by tidal pools).
La Perouse Bay is known for being a great snorkel location on Maui, but many people make the mistake of only looking in the bay. The best snorkeling is actually in small coves found on the northern end of the bay. Included in these coves are well known Kalaeola (Aquarium) and Fishbowl. Another good place to snorkel here is Moanakala (locally called Dumps). Dumps can be found at the northern end of the reserve, and you should note that access to Dumps is only permitted between 5:30 a.m. and 7:30 p.m. every day.
The drive to La Perouse Bay offers some truly unique scenery, where you will see a stark lava rock landscape – this is the site of the most recent eruption from Haleakala, in 1790.
To access La Perouse Bay, drive all the way down Makena Alanui Street. Just past mile marker 6.5 look for where lava originally flowed from the cinder cone. Be sure to watch out for the sharp lava rock (both for your car tires and your feet!).