Most reviewed Geologic Formations in Hawaii


  1. 4.5 Haleakala Crater (8.072 reviews)
    - Sunset just as amazing
    Spent More than 3 hours Mountains • Geologic Formations • Volcanos
    Haleakala Crater image
    Part of the larger of the two volcanoes that make up Maui, this peak is more than 10,000 feet up and the highest point on the island. See more..
  2. 4.0 Spouting Horn (5.548 reviews)
    - Worth the short drive from the Poipu Beach area
    Geologic Formations
    Spouting Horn image
    This blowhole on Kauai's south shore near Poipu shoots seawater through its natural lava tube up to 50 feet in the air. See more..
  3. 4.5 Nahuku - Thurston Lava Tube (1.623 reviews)
    - Favorite part of the Park
    Geologic Formations
    Nahuku - Thurston Lava Tube image
    This is a cool, short hike. Our group of diverse ages and walking ability all enjoyed it. There's a one-way path you take down, go through the tube (lots of drips, a few puddles), then come out and go back up. The lush rainforest on the way down and up is really lovely. The parking right at the tube site is limited; you're only allowed to park for 30 min. (just enough time) According to our NP app, the time we visited was "as busy as it gets" and we were able to slide into a parking spot without difficulty. The other option is to park at the overlook nearby and hike there. See more..
  4. 4.5 Queen's Bath (1.619 reviews)
    - Worth the hike!
    Geologic Formations
    Queen's Bath image
    Once a bathing spot for the royals, this stunning natural pool is now a popular summertime attraction. To get there, you'll need to take a 15-minute hike across slippery lava rocks, so wear a good pair of shoes. In summer, the pool resembles a large hot tub and the waters are calm and clear. During winter, however, the water can be treacherous, so avoid visiting during those months; the pool may even be closed. Before you go, be sure to check the surf report online, and only attempt the hike down if the waves are less than four feet high. – Tripadvisor See more..
  5. 4.5 Nakalele Blowhole (1.317 reviews)
    - Beautiful!
    Geologic Formations
    Nakalele Blowhole image
    This natural spout shoots up to 100 feet in the air—the view from the hilltop is impressive enough, but a hike down a rocky trail will let you get up close and personal. Approaching from the island’s west side is a lot easier than the drive from the east, and you may find the descent down to the geyser challenging. Wear appropriate footwear, as the area can be slippery and dangerous, and time your visit during high tide when the water spouts are at their most impressive. While you’re there, don’t miss checking out the Nakalele Point lighthouse, a short walk away. – Tripadvisor See more..
  6. 5.0 Kula Kai Caverns (201 reviews)
    - So interesting!
    Caverns & Caves • Geologic Formations
    Kula Kai Caverns image
    We visited here on a recent trip to Kona and really enjoyed the short lighted walking tour of the lava tube/cave. Our guide was very knowledgeable and engaging. I'd recommend to anyone in the area to learn more about the aftermath of a volcano. See more..
  7. 4.0 Phallic Rock (Ka Ule o Nanahoa) (116 reviews)
    - INTERESTING
    Geologic Formations
    Phallic Rock (Ka Ule o Nanahoa) image
    Name is an accurate description of this site. The rock formation also has a myth associated with it. See more..
  8. 5.0 Puu Pehe (Sweetheart Rock) (10 reviews)
    - Stunning views
    Spent 1-2 hours Geologic Formations
    Puu Pehe (Sweetheart Rock) image
    I was in awe over these views. Stunning doesn't cover it. I wanted to pop a tent and camp there and just stare all day. A must see. See more..