Things to Do in Big Island (Hawaii): My Adventure-Filled Island Itinerary

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When I first set foot on the Big Island, I didn’t realize just how big it actually was. This island isn’t just a dot in the Pacific—it’s a full-on adventure playground. Over the course of a week, I went from lava fields to lush valleys, watched stars from a mountaintop, and swam with manta rays under the moonlight. The Big Island surprised me in the best ways—and if you’re planning a visit, here’s everything I loved (and a few tips to help you plan your own trip).

Quick Tips for Big Island

BEST DAY TOURS FROM BIG ISLAND


🌋 Visit Hawaiʻi Volcanoes National Park

This was the highlight of my trip. Standing at the edge of the Kīlauea Caldera at sunset, I could see the glow of lava deep in the distance. It felt otherworldly.

What I Did:

  • Drove the Crater Rim Drive and stopped at the Steam Vents and Jaggar Museum overlook
  • Walked through the Thurston Lava Tube
  • Came back at night for the lava glow from the Halemaʻumaʻu Crater

Tip: Bring a headlamp if you’re doing any walking after sunset. And always check the National Park Service website for lava viewing updates.


🐠 Night Snorkel with Manta Rays in Kona

Swimming in the dark ocean might sound scary, but floating above enormous manta rays as they glide beneath you? Unforgettable. I booked a small-group tour from Kona, and they took us out to Manta Point right after sunset.

Why I Loved It:
The rays were massive—like 10 feet across—and came within inches of us as they looped in graceful circles.

If You Go:
Don’t skip the wetsuit they offer; the water gets chilly at night!


🏝 Relax at Hapuna Beach State Park

After a few days of adventuring, I needed some downtime. Hapuna Beach was the perfect spot—long stretches of golden sand, gentle waves, and plenty of space to stretch out.

My Favorite Things:

  • Morning swim when the beach was nearly empty
  • Shave ice from the nearby food truck
  • Sunset walks along the shore

Good to Know:
There’s a small entrance fee and paid parking, so bring some cash.


🌄 Drive to the Summit of Mauna Kea

This is the tallest mountain in the world… if measured from the sea floor. I rented a 4WD and drove to the summit with snacks, warm clothes, and plenty of water. At the top: observatories, snow (!!), and a sky full of stars.

Best Time to Go:
Sunset. But hang around after to stargaze—it’s one of the clearest night skies on Earth.

Important:
Acclimatize first. I stopped at the visitor center (at 9,200 ft) for an hour before heading to the 13,800 ft summit.


🌈 Explore the Lush Hāmākua Coast

This scenic coastal drive from Hilo up to Waipiʻo Valley was one of the most peaceful parts of my trip. Waterfalls, botanical gardens, and scenic overlooks at every turn.

My Route Highlights:

  • ʻAkaka Falls State Park: a short, lush walk to a towering 442-foot waterfall
  • Hawaiʻi Tropical Bioreserve & Garden: dreamy jungle paths
  • Waipiʻo Valley Lookout: a dramatic cliffside view with wild horses below

🌺 Wander the Farmers Markets in Hilo and Kona

If you want fresh fruit, local crafts, or just to chat with Big Island locals, the farmers markets are perfect.

I Bought:

  • Passion fruit jam
  • Handmade soap
  • A few too many bags of macadamia nuts

Tip:
Go in the morning when the stalls are full and the fruit is freshest.


🐢 Snorkel at Two Step (Hōnaunau Bay)

Turtles, coral gardens, and crystal-clear water—Two Step is one of the best snorkeling spots on the island.

Why It’s Special:
It’s right next to Puʻuhonua o Hōnaunau National Historical Park, so you can do a little snorkeling and a little history in one afternoon.


🍍 Sample Kona Coffee on a Farm Tour

I never appreciated coffee until I tasted fresh-roasted Kona beans in the middle of a plantation. I took a tour at Greenwell Farms—the views were stunning and the tastings generous.

Why You Should Go:
You’ll learn how coffee is grown, harvested, roasted—and yes, there’s a gift shop.


🧳 What to Know Before You Go

  • Rent a car. The island is huge, and public transportation is limited.
  • Pack layers. Beaches are hot, but Mauna Kea can be freezing.
  • Plan by side. The Kona side (west) is drier and sunnier, while Hilo (east) is lush and rainy.

📍 Big Island FAQs

How many days do you need on the Big Island?
I’d recommend at least 5–7 days to explore both the Kona and Hilo sides at a relaxed pace.

Is Big Island better than Maui or Oahu?
It depends. Big Island is more adventurous and rugged—perfect if you love nature, hiking, and volcanoes.

Can you swim in the ocean on the Big Island?
Yes! There are beautiful beaches like Hapuna and Kua Bay, plus snorkeling at spots like Two Step and Captain Cook.

What is the best time of year to visit Big Island?
Spring (April–June) and fall (September–October) offer fewer crowds and pleasant weather.

Do I need 4WD on Big Island?
Only if you’re planning to drive up Mauna Kea or explore remote roads like Waipiʻo Valley. Otherwise, a regular rental is fine.


🌴 Final Thoughts

Big Island wasn’t just another stop in Hawaii—it was an adventure that felt raw, real, and wildly beautiful. Whether you’re chasing lava flows, swimming with manta rays, or just soaking up sun at the beach, this island delivers something unique at every turn. I left feeling a little sunburned, a lot fulfilled, and already dreaming of my return.

If you’re planning your own Big Island trip, I hope this guide helps you map out something unforgettable.


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