Boise Whitewater Park – Frequently Asked Questions for Phase 1 and Phase 2
Updated: February 2026
1. What is the portage plan around the Boise Whitewater Park?
An updated portage plan has been implemented between Phase 1 and Phase 2 of the Boise Whitewater Park (portage means you must get out of the river and carry your watercraft around to the next river access point). Everyone recreating on the river should portage (exit the river) at the channel on the right of the river just after the bridge between Phase 1 and Phase 2. Look for signage on the bridge just upstream of the Boise Whitewater Park and along the banks of the river. This portage is recommended to avoid extremely hazardous conditions associated with the existing bypass feature (which is typically turned off). All entry to the river must be through approved access downstream of Phase 2; there is no upstream access allowed.
Guide to Whitewater Park Features
2. What influences the adjustable waves you can create at Phase 1 and Phase 2 of the Boise Whitewater Park?
A variety of factors influence the experience associated with Phase 1 and Phase 2 wave features. Water flow, measured in cubic feet per second (CFS), and irrigation demands are primary considerations. First and foremost, the city must fulfill its water right requirements and meet the irrigation needs of Thurman Mill Irrigation District using the diversion at Phase 1 and Farmers Union Ditch Co. at Phase 2. Our wave techs do their best to meet these needs while shaping the mechanical wave feature to create an experience that meets the needs of most users.
Our wave techs follow all safety protocols and check conditions regularly, to implement the best wave features possible given all the factors that impact the park. Users enter the park at their own risk and should always act as if they are entering a dynamic whitewater situation. Please remember, your safety while recreating on the river is your responsibility.
3. What is the latest update on Phase 2 of the Boise Whitewater Park?
Planned modifications were completed on site in February 2026 and crews working with our engineering partners at McMillen have exited the river.
The department’s goal is to create a unique and engaging recreational experience for all users at the Boise Whitewater Park. The Phase 2 adjustable wave is an expert-only feature, and the goal of this planned maintenance is to address the stability and intensity of the wave. Our engineering partners at McMillen created a plan for adjustments to the Phase 2 wave that seeks to meet operational and maintenance goals and enhance a fun and challenging in-river feature for river recreationists. These modifications were completed during the 2026 winter season.
Thank you for your patience and understanding as Boise Parks and Recreation’s trained wave technicians test and get to know the new setup at the adjustable wave feature at Phase 2 of the park. Updates and information about ongoing operations and the summer schedule will be shared as they are available.
4. Why can’t we wear leashes when the Phase 2 adjustable wave feature is operational?
Safety at the Boise Whitewater Park is always our top priority. Due to several entrapment hazards around the Phase 2 adjustable wave, leashes should not be used for your own safety. Any type of rope, string, or tethering device should not be used in the river. At this wave, there are entrapment hazards that could anchor a person to the bottom of the river when caught.
5. What can be done to improve the first wave feature at Phase 1?
Modifications within Phase 1 and Phase 2 affect the operations of each phase, and our priority is to first permanently update Phase 2 to provide a stable wave feature. Once Phase 2 modifications have been completed, adjustments to the Phase 1 features can be considered.
6. Who can I contact if I have questions about the Boise Whitewater Park or current features?
You can email the Boise Parks and Recreation Department with questions or concerns at any time. Our team will work to address your message and respond as staffing allows.