Adventures in Hilo, HI

Hilo is the Big Island’s rainy side, and families sometimes write it off for exactly that reason. That’s a mistake. All five adventures we track here are completely free, they include one of the best stargazing sites on Earth and a waterfall you can see 30 seconds after parking, and the rain is what makes this whole coast that impossible shade of green.

Why Families Love Hilo

Start with the easy win. Rainbow Falls is an 80-foot waterfall with a paved overlook a few steps from a free parking lot - the entire visit takes 15 to 30 minutes and it’s stroller-friendly. On sunny mornings, rainbows form in the mist at the base, which is how it got the name, so mid-morning is the sweet spot. A short trail leads to the top of the falls through a grove of enormous banyan trees.

Richardson Ocean Park is the family swimming answer on this coast: a black sand beach with lava-rock tide pools that shelter the water from waves, plus lifeguards, restrooms, and showers. Green sea turtles feed on the algae growing on the rocks, so sightings are close to guaranteed. Little kids can hunt for urchins and crabs in the pools while older ones snorkel.

Then there’s the Mauna Kea Visitor Information Station at 9,200 feet, which runs free evening stargazing programs with telescopes above the cloud line. The Milky Way from up there does not look real. The drive up passes through several climate zones on the way, which is its own lesson. Two things to know: a regular car reaches the visitor station, but the summit road needs 4WD, and children under 13 shouldn’t go to the 13,796-foot summit because of the altitude. The station is the family destination - not the top.

Two Stops That Fill the Gaps

Hilo Farmers Market is the biggest in Hawaii, with 200-plus vendors on Wednesdays and Saturdays. Kids get genuinely curious about rambutan, dragon fruit, and starfruit they’ve never seen, and there are fresh coconuts cut open for drinking. Bring cash and reusable bags, and get there by 8am on a Saturday for the best selection.

Mauna Loa Macadamia Nut Factory is a free self-guided tour through an orchard and a processing facility you watch through glass, with free samples that reliably make it the kids’ favorite stop of the day. Go on a weekday if you want to see the factory actually running. It’s an hour, tops - perfect for breaking up a driving day or waiting out a shower.

A Hilo Day, Start to Finish

Morning: Rainbow Falls, then the farmers market if it’s a Wednesday or Saturday. Both are in town and close together.

Midday: The macadamia nut factory - partly indoors, free samples, and a solid rain contingency.

Afternoon: Richardson Ocean Park for tide pools, turtles, and swimming in sheltered water.

Evening: Drive up to the Mauna Kea Visitor Information Station for the stargazing program. Check the schedule before you commit to the drive.

That evening plan comes with a wardrobe warning: it is genuinely cold at 9,200 feet after dark. Warm layers, blankets, hot drinks, and a flashlight with a red filter so you don’t wreck anyone’s night vision.

Getting There

Hilo has its own airport on the island’s east side and it’s the closest town to the Mauna Kea access road. Everything in town is a short drive from everything else, which is a real advantage on an island where two-hour drives are normal.

Best Time to Visit

Year-round. Hilo is wet - that’s not a season, it’s a personality - so pack a rain jacket regardless of month and plan around showers instead of trying to dodge them. Mornings are best for the falls (rainbows) and the beach (calmest water, most turtles). For stargazing, clear nights matter more than the calendar, so check conditions before making the drive.