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..
4.5Queen's Bath(1.619 reviews) - Worth the hike! Geologic Formations
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. – TripadvisorSee more..
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. – TripadvisorSee more..
5.0Kula Kai Caverns(201 reviews) - So interesting! Caverns & Caves • Geologic Formations
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..