1. Halona Blowhole is a popular tourist attraction located on the southeastern shore of Oahu, Hawaii. It is a natural wonder formed by molten lava that flowed into the ocean and created a small lava tube that extends from the shore to the surface of the sea. When a wave enters the tube, it forces the air and water out of the top, creating a powerful geyser-like blast of water that reaches up to 30 feet high. Halona Blowhole is surrounded by rocky cliffs and provides a beautiful ocean view.

2. Halona Blowhole is accessible to visitors 24/7, and there is no entrance fee to view the blowhole. The site does not have an official phone number.

3. The best way to reach Halona Blowhole is by car or tour bus. From Waikiki, take H1 East to Exit 27 (Wailupe) and turn right onto Kalanianaole Highway (Hwy 72). Continue for about 9 miles until you see a small parking lot on the left side of the road. Park there and look for the signs leading to the blowhole.