Located a few miles around the bend from Hanauma Bay, the Halona Blowhole Lookout is worth a stop if you are in the area. Look for the sign on the ocean side of Kalanianaole Highway and pull into the large parking lot. Off to the right is a small beach made popular in the movie "From Here to Eternity". Access down to the beach is via a small steep rocky path. This beach is a favorite for the Hawaiian green sea turtle.
So, what exactly is a blowhole ? It is formed by molten lava tubes from volcanic eruptions that took places thousands of years ago. When the surf is just right, the Halona Blowhole will shoot water up to 30 feet in the air. Of course, this isn't always occurring. Sometimes all you see is the lovely scenery and no shooting water... Regardless of whether it's "blowing" or not, do not even consider going anywhere near the blowhole. Every now and then I read the tragic story of a tourist who wanted to get up close to nature and ended up being taken out to sea.
Sign for the Halona Blowhole Lookout
Halona Blowhole overlook
There she blows !
Nice view down the coast
Halona Beach Cove (From Here to Eternity beach)
* On a clear day, you can see the islands of Molokai and Lanai.
* If you come during the winter months, see if you can spot some whales.
* Even though you are planning just a quick stop, be sure to lock your car since this is known as a high-theft area.
The Halona Blowhole Lookout is about two miles out from Hanauma Bay. From Waikiki, follow H1 East to Kalanianaole Hwy and just keep driving until you pass Hanauma Bay on the right (about 10 miles from Waikiki). Then continue along the incredibly gorgeous coastline (keep your eyes on the road and not on the view !!) for a couple miles until you see the sign.
Video of Halona Blowhole: