The Green Heart
Valleys, Rainforests, and Waterfalls of the Windward Side
Written by a Local Expert
Kalani MillerWhere Water Carves Paradise
After exploring the island's fiery core and celestial peaks, we descend to its windward side, a world of vibrant green carved by water and time. Here, deep valleys shelter ancient stories, and lush rainforests hide some of Hawaii's most spectacular waterfalls. Navigating this part of the island requires up-to-date knowledge, as access to these cherished places can change.
The Great Valleys: A Tale of Two Views
The dramatic, fluted cliffs of the Kohala and Hāmākua coasts hide a series of seven magnificent valleys, formed over hundreds of thousands of years of erosion. The two most famous are Waipiʻo and Pololū. While they share a similar majestic beauty, visiting them today offers two very different experiences.
Waipiʻo Valley ("Valley of the Kings"): The Sacred Lookout
Waipiʻo Valley holds a place of immense importance in Hawaiian history and culture. Known as "The Valley of the Kings," it was the boyhood home of King Kamehameha I and a vital center for political, religious, and agricultural life, once supporting thousands of Native Hawaiians.
Addressing Access:
Let's be very clear about this, as much of the information online is outdated. As of late 2022, the steep Waipiʻo Valley Road is closed to all non-resident vehicle traffic and all pedestrian (hiking) traffic.
This closure was enacted by the county due to significant safety risks from rockfalls and landslides and to honor the privacy and lifestyle of the residents who still live and farm taro in the valley.
The Lookout Experience: While you can no longer hike down, the experience from the Waipiʻo Valley Lookout at the end of Highway 240 is still breathtaking and absolutely worth the drive. From this vantage point, you can gaze down into the fertile valley, see the winding river meet the ocean, and admire the mile-wide black sand beach bordered by cliffs that soar up to 2,000 feet.
The mana (spiritual power) you feel just standing at the Waipiʻo lookout is incredible. You're looking at a living cultural landscape. While you can't go down into the valley on your own anymore, taking in this powerful view is an experience in itself.
Pololū Valley: The Accessible Adventure
For those who dream of hiking down into one of these majestic northern valleys, Pololū is your destination. As the northernmost of the great Kohala valleys, it offers a similarly dramatic landscape to Waipiʻo but remains open to the public for a fantastic and challenging hike.
The Hike Details:
- Rating: Moderate (steep descent, not long distance)
- Distance: 1.2 miles round trip to beach and back
- Elevation: 400-foot descent over 0.6 miles
- Time: 1-1.5 hours plus beach time
- Trailhead: End of Highway 270
The trail begins at the lookout and immediately starts switching back down the sea cliff. The views of the coastline and the offshore sea stacks get better with every step. Once you reach the valley floor, you'll find a forest of tall ironwood trees, often with rope swings hanging from their branches, and a stunning, rugged beach of black sand and polished lava stones.
⚠️ Crucial Safety Note:
Do not swim at Pololū Beach. The ocean here is notoriously rough and unpredictable with powerful currents and no lifeguards. It is a place to admire the power of the waves from the safety of the shore.
Ready to Taste the Land?
Continue your journey to discover the agricultural treasures and farm tours that showcase the Big Island's rich volcanic soil.
Explore Agricultural Tours →📖 Complete Guide
🏔️ Valley Access
- Waipio Valley: Lookout Only
- Pololu Valley: Hike Available
- Cliff Height: Up to 2,000 ft
- Beach Type: Black sand
🥾 Pololu Hike
- 1.2 miles round trip
- 400 ft elevation change
- Moderate difficulty
- No swimming allowed
🎒 Valley Essentials
- Good traction shoes
- Plenty of water
- Energy snacks
- Rain jacket
- Camera for views
💡 Local Tips
Best Time: Early morning to beat crowds and heat. Parking is limited at Pololu (only ~10 spots).
Iconic Waterfalls & Rainforest Hikes
The windward Hāmākua Coast is drenched in rain, creating a paradise for waterfalls and lush jungles.
ʻAkaka Falls State Park: The Gentle Giant
For an easily accessible and truly spectacular waterfall experience, ʻAkaka Falls is a must-see. The park features a pleasant, 0.4-mile paved loop trail that winds through a vibrant tropical rainforest. You'll walk through towering bamboo groves, past wild orchids and fragrant ginger plants. The trail offers a viewpoint of the cascading Kahuna Falls before culminating at the main event: the breathtaking ʻAkaka Falls, which plunges an uninterrupted 442 feet into a deep gorge below.
Logistics:
- Hours: Daily 8:30 AM - 5:00 PM
- Entrance Fee: $5 per person (non-residents)
- Parking Fee: $10 per vehicle
- Payment: Credit card only - pay online in advance
- Trail: 0.4-mile paved loop with stairs (not wheelchair accessible)
Kohala Waterfalls: The Exclusive Escape
Many people dream of swimming in a secluded Hawaiian waterfall, but the reality is that many of the most pristine falls are located on private land and are inaccessible to the public. Trespassing is a serious issue and can be dangerous.
The Solution:
The best and most respectful way to live out this dream is to go with a guided tour company that has legal access. I often recommend the Kohala Waterfalls Adventure from Hawaii Forest & Trail.
They have exclusive access to a private nature reserve where you take a leisurely hike along a stream to several beautiful, cascading waterfalls. The highlight is getting to swim in a refreshing mountain pool beneath one of them.
My Hidden Gem Trail: Kalopā State Park Nature Loop
When I really need to unplug and just be in nature, I head to Kalopā State Park. It's a local's favorite, a true hidden gem that offers an escape into a cool, misty native rainforest far from the usual tourist trails.
The Setting
Located on the Hāmākua Coast at 2,000-foot elevation. Protects a stunning 100-acre native forest with crisp, clean air.
The Experience
Easy 0.7-mile nature loop through pristine old-growth forest. Educational brochure with numbered posts available.
The main attraction is the easy 0.7-mile nature loop. It's a gentle walk through a pristine, old-growth forest filled with native ʻōhiʻa and koa trees, giant hāpuʻu ferns, and other endemic plants. There's a brochure available at the trailhead that corresponds to numbered posts, turning your walk into an educational journey through Hawaii's unique botany.
This is the perfect place for what people now call 'forest bathing.' The sounds of the forest, the smell of the damp earth—it's incredibly peaceful. It's also a fantastic spot for birdwatching, so keep an eye out for the bright red ʻapapane and the yellow-green ʻamakihi.
Pack a lunch to enjoy at the large picnic pavilion after your walk. It's one of the most serene spots on the entire island. Because of the elevation and moisture, a light jacket or sweatshirt is a good idea. And since it's a damp forest, mosquito repellent is a must!