Big Island Family Hikes: From Volcanoes National Park to Pololu Valley

The Big Island is the hiking island. The geographic diversity of Hawaii Island runs from the rainforest of Hilo to the lava deserts of Kona, the alpine tundra of Mauna Kea to the black sand beaches of Pololu, and you can hike representative pieces of all of it on trails that range from 0.4 miles paved to 4 miles steep. Most are short enough for kids. All are dramatically different from anything on Oahu or Maui.

This is the Big Island family hiking guide for 2026: the eight trails I bring my own kids on, the age recommendations that match the actual difficulty, what gear matters in volcano country versus rainforest, and the post-eruption status of Hawaii Volcanoes National Park after the 2024-2025 Kilauea activity.

Big Island Hiking 101 for Families

Three things make Big Island hiking different from the other Hawaiian islands:

1. Elevation matters. Volcanoes National Park sits at 4,000 feet. Mauna Kea visitor center is at 9,200 feet. Even short hikes at altitude tire out flatlanders fast. Plan rest stops.
2. Lava rock is unforgiving. Slip-on shoes get shredded. Open-toed sandals invite a stubbed toe that ruins a vacation. Sturdy closed-toe hiking shoes are the rule.
3. Two climates per island. Hilo gets 130 inches of rain a year. Kona gets 18 inches. Pack for both.

The Eight Big Island Family Hikes

1. Akaka Falls Loop (Hamakua Coast) - The Easy Win

The 0.4 mile paved loop trail through rainforest to a viewing platform with a 442 foot waterfall. Stroller-accessible (with effort on the steeper sections). A five year old can do it without complaint. $5 per vehicle entrance, free for Hawaii residents with ID. This is the easiest waterfall view on the Big Island.

2. Rainbow Falls (Hilo) - The Drive-Up Waterfall

You park 50 feet from the viewpoint. The hike to the upper viewing area adds 0.2 miles each way. Stroller-friendly. The waterfall throws a rainbow when the morning sun hits the spray, hence the name. Free.

3. Pololu Valley Lookout and Descent (North Kohala) - The View, Then the Beach

The lookout is at the end of Highway 270, free, drive-up. The descent to the black sand beach is 0.5 miles each way and steep, gaining and losing 360 feet on a switchback trail with steps and lava rock. Allow 60 to 90 minutes round trip with kids. The black sand beach at the bottom is exposed; do not let kids swim, the rip current is severe. Look at the offshore sea stacks. Eat the snacks. Climb back up.

Age guideline: 6+ for the descent (smaller kids in a hiking carrier). 4+ for the lookout only.

4. Kilauea Iki Crater Trail (Volcanoes National Park) - The Wow Hike

The 4 mile loop that takes you across the floor of an active volcanic crater. You start on the rim, descend 400 feet through a fern forest, then walk on the crusted lava lake floor that erupted in 1959 and is still steaming in places. This is the single most memorable hike a Hawaii kid can do.

Allow 3 hours. The trail is exposed on the crater floor; bring water and sun protection. Age guideline: 7+ for the full loop. Younger kids can do the rim walk and look at the crater floor from above.

5. Devastation Trail (Volcanoes National Park) - The Stroller Hike

0.5 mile paved (gravel) loop through the cinder field of the 1959 eruption. Stroller and wheelchair accessible. Volcanic black sand under your feet. Charred ohia tree stumps. Easy. Striking. Younger sibling park while older kids do Kilauea Iki.

6. Sulphur Banks and Steam Vents (Volcanoes National Park) - The Sensory Hike

The 1 mile paved loop from Kilauea Visitor Center past the steaming sulphur banks. Kids will smell the volcano (think rotten eggs, briefly). The steam vents puff in the cold morning air. Educational and short. Stay on the path; the ground is unstable in places.

7. Captain Cook Monument Trail (Kona) - The Reward Hike

1.9 miles each way, descending 1,400 feet to Kealakekua Bay where Captain Cook was killed in 1779. The monument and the snorkeling at the bottom are both extraordinary. The climb back up is hard. Plan for 4 hours, start at 7 a.m., bring snacks, bring serious water. Age guideline: 9+ for the full descent. The monument can also be reached by kayak or boat tour, which is the easier option for younger kids.

8. Mauna Kea Visitor Center Sunset (Saddle Road) - The Drive-Up Stargazing Hike

Not technically a hike but a 0.2 mile loop trail above the Mauna Kea Visitor Information Station at 9,200 feet. Children under 16 should not go above the visitor center per the Mauna Kea Observatory advisory due to altitude effects. The visitor center is fine. The free stargazing program runs nightly when staff is available. Bring warm clothes; it drops below 50 degrees after sunset.

Volcanoes National Park: 2026 Status

The 2024-2025 Kilauea summit eruptions periodically closed sections of Crater Rim Drive and the Kilauea Iki trail. Check the park alerts page at nps.gov/havo before you go. As of early 2026, the main visitor center, the Devastation Trail, the Sulphur Banks loop, and the Thurston Lava Tube are all open. Kilauea Iki opens and closes based on summit activity.

Park entrance is $30 per vehicle, $25 per motorcycle, $15 per pedestrian, valid for 7 days. Hawaii residents pay $25 for an annual pass that covers all national park sites in Hawaii.

What to Pack for Big Island Family Hiking

Footwear is the big decision

Lava rock destroys cheap shoes. Mishansha kids hiking boots with grippy water-resistant uppers handle both the wet rainforest of Akaka and the dry lava of Volcanoes. For parents, Merrell Moab 3 hiking shoes have been the workhorse of every hike on this list.

Day pack essentials

• Reef-safe sunscreen. Volcano country gets brutal sun even at altitude. Sun Bum mineral SPF 50 is reliable.
• Wide-brim sun hat for everyone. Kilauea Iki crater floor has zero shade. A packable UPF 50 sun hat is the right call.
• Insulated water bottles. One liter per person minimum on the longer hikes. Hydro Flask 32 oz for parents, Hydro Flask 12 oz kids size for kids.
• Picaridin insect repellent. The Hilo side trails have mosquitoes; the volcanic side does not. Picaridin spray works on both.
• Hiking baby carrier for kids under 4 who are doing Pololu or Kilauea Iki. A foldable hiking carrier with a 3-height seat handles both.
• Parent daypack. 20 liters is the right size for snacks, water, and an extra layer. Osprey Daylite 20L is the workhorse.
• Field journal for kids. The geology lessons embedded in Volcanoes National Park are a literal kid science class. An Outdoor Explorers field journal turns each trail into a project.
• Compact binoculars. For the offshore sea stacks at Pololu and the steam vents at Kilauea. A small 8x21 pair packs in a pocket.
• A warm layer for Mauna Kea. The visitor center is below 50 degrees at sunset year-round. Pack a light fleece for every kid.

Pairing Big Island Hikes with the Rest of the Trip

If you have 5 days on the Big Island, see our 5 day Big Island itinerary for the rotation that builds these hikes into the trip. The basic structure: 2 days on the Hilo side (Akaka Falls, Volcanoes National Park, Rainbow Falls), 2 days on the Kona side (Pololu Valley descent if doing Kohala, beach time, Captain Cook), and 1 day for travel between.

Big Island hiking with kids is the hardest hiking in Hawaii to skip. The lava is real. The waterfalls are big. The black sand beach at the bottom of Pololu is the hike-down reward they remember more than the vacation rental. Pack the boots. Bring the snacks. Go.