The blowhole is known for its spectacular "eruption" of sea water creating a geyser effect that can rise as high as 100 feet in the air, depending on tide level and surf conditions. The natural fountain is the result of forceful waves wearing away the shore below the lava shelf. With each wave, water is forced through a hole in the lava shelf resulting in the spectacular geyser-like occurrence.
Extreme caution is advised when venturing into the point. Keep a safe distance away from the blowhole as the area can be very dangerous. Numerous accidents and even deaths, have been reported in the area. Those who have died have been too close to the blowhole and get sucked in by retreating water. Wear appropriate footwear to safely travel through the rocky and slippery terrain.
There are two trails that lead to the Nakalele Blowhole, one that begins from a gravel parking lot near mile marker 38, entailing about 30 minutes walk to the point. The other trail is located mile past mile marker 38 and is marked by a dirt pullout along the side of the road. From this area you can usually see the blowhole without doing the hike.
Other attractions at Nakalele Point are tidepools along the shore and beautiful natural lava rock formations (including a rock with a heart-shaped hole!). A beacon erected around 1908 is another place of interest.