Halona Blow Hole

The Halona Blowhole is one of those quick stops that turns into a "whoa, that was awesome" moment, especially if the surf is pumping. Located along the southeastern coast of Oahu on the scenic Kalanianaole Highway, it's a natural lava tube formation where ocean water rushes in and shoots straight up like a geyser. When the waves hit just right, it puts on a pretty impressive show, sometimes reaching up to 30 feet in the air! What's cool is that it's super easy to visit, it's literally right off the highway with a designated lookout point. The views from up there are gorgeous: you've got the Pacific stretching out ahead, dramatic sea cliffs, and even Moloka'i in the distance on a clear day. And if you look down to the left, you'll spot the little crescent-shaped Eternity Beach (Halona Beach Cove), famous for that iconic kissing scene in From Here to Eternity. You won't need much time here, but it's a must-see if you're doing a coastal drive toward Hanauma Bay or the east side of the island.

Tips for Visiting

Go When the Surf is Up: The blowhole is most active during high tide and rougher ocean conditions, especially in the winter months. On calm days, it might just bubble a bit.
Don't Go Down to the Blowhole: It might be tempting to hike closer, but it's very dangerous. People have been injured (and worse) trying to get a close-up. Stick to the lookout.
Check Out Eternity Beach: There's a path to the little beach cove below the lookout, it's steep and rocky but doable if you're wearing proper footwear. Great spot for photos or a quiet sun break.
Pair It With a Scenic Drive: Halona Blowhole is on the route from Honolulu to Makapu'u, Waimanalo, or Hanauma Bay, so it's a great stop as part of a bigger adventure day.
Parking is Limited: There's a small lot at the lookout, but it fills up quickly. Early morning or late afternoon are better times to avoid crowds.
Whale Spotting: From November to March, bring binoculars, it's a great spot to look for humpback whales offshore.