May 21, 2025
Adra Tunnel is now open for public use.
Please access the tunnel by these two preferred ways:
- Glenfir parking lot
- 8 km ride or walk on the KVR to the tunnel
- The KVR Trail is intended for recreational use: bikes, horses, walkers, and licensed off-road vehicles (ORVs)
- Naramata Creek Fire Service Road (FSR) parking area. The FSR is an unmaintained resource road and is narrow and steep, with rough conditions and loose rock.
- Drive 2.5 km east to the Smethurst staging area
- Vehicles travelling downwards have the right-of-way
- Please ensure vehicles are suited for off-road conditions (high clearance, proper tires)
- It is approximately a 750-metre hike from the Smethurst staging area to the lower tunnel, following the trail marked Sanchez to Adra Tunnel Service Road. Follow this service road to Adra Tunnel.
- Sanchez Trail is not fully accessible. The trail is shared use and supports motorized recreation (motorbikes and ORVs).
- Please stay on the marked trail to the tunnel and respect other trail users
For those visiting Adra Tunnel, please be aware there is the potential of falling rock and debris, cold and damp air conditions, and varying surface conditions. Be prepared before you enter the tunnel. There is no cellular telephone service and no natural light inside the tunnel (your phone flashlight will not be sufficient).
Within the tunnel, two-way cyclist and pedestrian traffic is in effect. Please be aware and respectful of other users. From the north entrance, there is a tunnel bypass route available 175 metres to the west or 500 metres from the south entrance.
- Please visit the Image Gallery to view site maps
Adra Tunnel access (May 16, 2025) Photo: RDOS
Overview
Significant efforts have been made through donations and in-kind works to prepare for public use of the tunnel.
The Regional District of Okanagan-Similkameen (RDOS) is working with the Woodwackers 2.0 community group,
Recreation Sites and Trails BC, and several local contractors to restore Adra Tunnel.
The restoration project has made significant progress and is in the final stages of the approval process.

Adra Tunnel February 8, 2024. Adra Tunnel is located on the KVR Trail in the hills of Naramata.
Woodwackers 2.0
For more than 40 years, the Adra Tunnel, a century-old engineering marvel, was closed to the public. The original Woodwackers, a community group from Naramata, made efforts to reopen it as part of their contributions to the Kettle Valley Rail (KVR) Trail.
In 2021, a diverse community network spanning generations and industries united to continue the Woodwackers' work.
Woodwackers 2.0 believe in the trail network's value, fostering a healthy community and unlocking tourism, recreation, and economic prosperity for the Okanagan.
Woodwackers 2.0 would like to thank all the generous donors, volunteers, and local businesses who have contributed to making this project a success, including George and Sylvia Melville who donated $100,000. Their invaluable support will help cover additional costs required to complete the project.
The significance of the Adra Tunnel extends far beyond its 1,600 feet (487 metres):
- Connection: The tunnel will facilitate cyclists riding from Penticton to Kelowna, bridging communities like never before.
- Heritage: An engineering feat from more than 10 years ago, it preserves the vision, labour, and ingenuity of past generations.
- Trail Network: It strengthens the KVR's reputation as a world-class network of hiking and biking trails.
- Destination: With support from local architects, Adra Tunnel is poised to become a destination similar to Myra Canyon.