Run mile-long rapids on the Numbers — an advanced, full-day whitewater trip on the Arkansas River near Buena Vista, Colorado. This high-adventure tour mixes continuous class III–IV+ rapids, rugged canyon scenery, and a skilled guide team.
More ways to explore the area's outdoor wonders
The Arkansas River bites and then laughs — a living corridor that pushes you forward through the Numbers, an intense, mile-after-mile series of rapids carved where the Sawatch Range drops to the valley. On a full-day Numbers run from River Runners Browns Canyon, rafters move from calm eddies into long, continuous waves that demand attention, teamwork, and quick reflexes.
Difficulty
challenging
Duration
6 hours
Fitness Level
Participants should have high aerobic fitness, core strength for paddling, and comfort in moving water; strong swimmers preferred.
Wildlife
History
Browns Canyon gained national monument status in 2015 after decades of recreational use; rafting lore in Buena Vista traces back to small guide operations in the 1970s.
Conservation
The Arkansas Headwaters Recreation Area charges fees to support river access and stewardship; follow Leave No Trace, pack out trash, and listen to guides to minimize bank and wildlife disturbance.
Reserve your spot on the Numbers Full Day High Adventure Whitewater Rafting Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Arrive early for briefing
Plan to be at River Runners 45 minutes before departure to check gear, sign waivers, and get your safety briefing.
Wear secure, closed-toe river shoes
Use river sandals with heel straps or neoprene booties — loose flip-flops will float away during a swim.
Hydrate and reapply sunscreen
Long sun exposure on the river plus physical exertion increases dehydration risk; bring a hydration bladder and reef-safe sunscreen.
Know your physical limits
This run is physically demanding and not recommended for those with heart, back, or pregnancy restrictions; communicate concerns to guides before launch.
Neoprene wetsuit or river top
Keeps you warm in cold spring flows and helps prevent hypothermia in long swims.
spring
Secure river footwear (sandals with straps or neoprene booties)
Protects feet and stays on if you end up in the water.
summer
Quick-dry layers and a sun shirt
Lightweight layers and UPF protection for long exposure on the river.
summer
Small dry bag or zip-top for essentials
Keeps phone, snacks, and a small first-aid kit dry during shuttles and breaks.