What it is
The Maluhia Road Tree Tunnel is a scenic, approximately one-mile stretch of Maluhia Road (State Route 520) on the island of Kauaʻi. It is characterized by a dense canopy of towering swamp mahogany (Eucalyptus robusta) trees that arch over the roadway, creating a tunnel-like effect. This passage serves as the primary gateway to the South Shore communities of Kōloa and Poʻipū. The trees were planted in 1911, originally a gift of 500 saplings from pineapple and sugar magnate Walter Duncan McBryde.
Visitor experience
The experience is a brief but picturesque drive-through, lasting only a couple of minutes at the posted speed limit. Travelers are enveloped in a corridor of dappled light filtering through the eucalyptus leaves, which creates a memorable and highly photographic entrance to the South Shore. The air is often fragrant with the scent of eucalyptus. A popular local tradition suggests holding one's breath for the entire length of the tunnel for good luck. The canopy is not entirely uniform; gaps exist where trees were damaged or destroyed by past hurricanes, notably ʻIwa (1982) and ʻIniki (1992). The experience is entirely from a vehicle, as there are no designated stopping points.
Logistics
Location: The tunnel comprises the northern section of Maluhia Road (Hwy 520), beginning shortly after the turn-off from Kaumualiʻi Highway (Hwy 50).
Access & Cost: This is a public state highway, free and open to all vehicle traffic 24/7, unless closed for safety reasons.
Parking: There are no designated pullouts, shoulders, or parking areas within the tunnel. A small, uneven dirt shoulder exists at the very northern entrance, but stopping is highly discouraged due to traffic. It is illegal and unsafe to stop in the travel lanes.
Duration: The drive through the tunnel itself takes approximately two minutes. It is a fleeting experience, not a destination for an extended stop. It functions as a scenic feature on the way to other South Shore activities.
Timing: The light is often best for photography in the early morning or late afternoon. Traffic can be heavy, particularly in the afternoon as visitors and residents head towards the Poʻipū resort area.
Safety and cautions
Traffic Safety: Maluhia Road is a busy, two-lane highway. Drivers must maintain their speed and not stop in the road to take photos, as this creates a significant hazard.
Falling Branches: Eucalyptus trees are prone to dropping large branches, especially during and after periods of high wind and heavy rain. The county may temporarily close the road for cleanup and safety inspections following severe weather.
Walking and Cycling: While physically possible, walking or cycling through the tunnel is not recommended due to the lack of safe shoulders and the speed of vehicle traffic.
Night Driving: The road is unlit, making it very dark at night. Drivers should be cautious of cyclists or animals on the road.
Editorial take
Who should prioritize it: The Tree Tunnel is an iconic Kauaʻi landmark and a de facto part of the itinerary for anyone visiting the South Shore. First-time visitors, families, and photographers (with a dedicated driver) will find it a charming and memorable, if brief, experience.
Who should skip it: No one needs to go out of their way or skip it, as it's the main route to Kōloa and Poʻipū. However, visitors should manage their expectations: this is a two-minute drive, not a park or a destination for a long visit. Those seeking a more substantial scenic drive with multiple lookouts and hiking opportunities should consider Waimea Canyon Drive instead.
Not to be confused with: This is a specific feature of Maluhia Road (Hwy 520). It is the start of the Holo Holo Kōloa Scenic Byway, but it is not the entire byway itself.
Source notes
- Go Hawaii (Official): Provides a concise overview, confirming the tree species and origin as a gift from Walter McBryde.
- For Kauai: A travel guide that details the visitor experience, including the "hold your breath" legend and crucial safety warnings about not stopping in the road.
- Kauai.com: Corroborates the history of the tunnel, including the 1911 planting date, the number of trees (500), and the impact of hurricanes.
- Hawaii Tourism Authority: Briefly mentions the Tree Tunnel as a landmark on the way to Poʻipū.
