Parking
Use roadside parking by the Keʻanae Arboretum sign on Hāna Highway (HI-360), about 0.7 mi past mile marker 16. The paved access path leads into the grove; roadside space is limited and no stall count is posted.
Overview
About Keʻanae Arboretum Walk
Why go
- A labeled tropical tree collection and rainbow eucalyptus on an easy paved walk.
- Old taro terraces beside Piʻinaʻau Stream give the short stop a real sense of place.
Heads up
- Mosquitoes are a recurring nuisance.
- Roadside parking is limited, and the entrance can be easy to miss.
The collection includes timber, fruiting and ornamental trees from tropical regions around the world, labeled with their common and scientific names and country of origin. Rainbow eucalyptus is the standout: its peeling bark breaks into green, orange, pink and purple. The upper section focuses on plants Hawaiians cultivated for food and other uses, so the walk is part garden visit and part introduction to useful plants.
Parkwolf’s verdictTrees worth slowing down forMap & elevation
The route
Loading the Road to Hana map
Full mapElevation108–167 ft
Plan your hike
Before you go
Parking
Safety
The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Road to Hana Tour Guide
Your drive to Keʻanae Arboretum Walk, narrated.
Parkwolf is a GPS audio tour guide for Road to Hana. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the Road to Hana audio tourRecorded for this trailhead
Keʻanae Arboretum’s Rainbow Bark0:00 / 0:30
“Keʻanae Arboretum is coming up, a small tropical plant collection beside Piʻinaʻau Stream.”
Plays as you drive up to this trailhead in the Parkwolf Road to Hana Tour Guide.
More stories near here in the app
- Keʻanae’s Lava Shore and Banana Bread
- Halfway to Hāna’s Roadside Snacks
- ʻAukuʻu’s Patient Hunt
- Understanding a Bowl of Poi
- 48 audio storiesacross Road to Hana’s roads, triggered by GPS as you drive
- Wildlife heatmapsfor Hawaiian Monk Seal, Green Sea Turtle, Frigatebird, and 13 more
- Works offlinemaps, 13 trails, 39 places, and audio download before you lose signal
- CarPlay readysimple controls built for the drive
“Fantastic app with many points of information… It’s great to just turn on while you’re driving and it gives you an audio tour of the national Park. We love it!!!!”
Trail guide
Hiking Keʻanae Arboretum Walk
An easy stop when you want a walkKeʻanae Arboretum Walk is an out-and-back stroll along Piʻinaʻau Stream through a tropical tree…
Keʻanae Arboretum Walk is an out-and-back stroll along Piʻinaʻau Stream through a tropical tree collection and old taro terraces. The mapped asphalt corridor runs about 0.46 mile each way, so the full walk back is roughly 0.92 mile round trip. A published 0.6-mile figure does not say whether it includes the return; other route accounts describe about 0.9 to 1.0 mile. Allow about an hour if you want to stop at the plant labels. It is an easy, mostly flat path rather than a demanding hike.
Taro terraces beside Piʻinaʻau StreamThe arboretum follows Piʻinaʻau Stream over level terraces Hawaiians built for taro cultivation…
The arboretum follows Piʻinaʻau Stream over level terraces Hawaiians built for taro cultivation hundreds of years ago. A longer description mentions an actively managed loʻi kalo farther along, but the official route details do not mark the upper endpoint clearly. Stay on the signed arboretum path; nearby unmarked paths and access roads are not part of this route and may lead toward private property.
Roadside access and mosquitoesPark on the roadside by the arboretum sign on Hāna Highway (HI-360), about 0.
Park on the roadside by the arboretum sign on Hāna Highway (HI-360), about 0.7 mile past mile marker 16. The paved path leads from the highway into the grove. Parking space is limited and the entrance can be easy to miss. There are no on-site facilities or amenities, and mosquitoes are a recurring nuisance, so bring repellent if they bother you.
Wildlife
Wildlife in Road to Hana
10 sightingsHawaiian Monk SealMost seen around 11 AMSighting map
127 sightingsGreen Sea TurtleMost seen around 5 PMSighting map
86 sightingsFrigatebirdMost seen around noonSighting map
17 sightingsRed-footed BoobyMost seen around 6 AMSighting map
73 sightingsNene (Hawaiian Goose)Most seen around 6 AMSighting map
58 sightingsHawaiian StiltMost seen around 8 AMSighting mapSighting maps show where each species has been reported across Road to Hana. Wildlife moves, so no sighting is guaranteed.
