THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Launch into summer at Harpers Ferry’s new inflatable quarry waterpark. Race across a Ninja-style obstacle course, float beneath steep rock walls, and make big splashes with family and friends.
Launch into summer at Harpers Ferry’s new inflatable quarry waterpark. Race across a Ninja-style obstacle course, float beneath steep rock walls, and make big splashes with family and friends.
Book with River Riders
Verified experiences and guided adventures in the surrounding area.
Operated by River Riders · Harpers Ferry, West Virginia
On a sun-drenched summer day in Harpers Ferry, West Virginia, a quarry has been reimagined as a high-energy playground: River Riders’ COMBO - WaterPark invites families and adrenaline-seekers to jump into a 1.5-hour session on a course of giant inflatables set inside a crystal-clear quarry basin. Located at 320 WaterPark Way, Millville, WV, this new 2025 attraction stretches nearly the length of a football field and stitches together seven massive inflatable elements, two spinning disks, and a central Ninja Warrior-style obstacle run that sparks friendly races, climbs, and splashy wipeouts. Sessions are strictly reservation-only; check-in begins thirty minutes before your slot, waivers must be completed, and personal flotation devices are supplied for every participant. The park enforces age and size limits—participants must be at least five years old, at least forty-five inches tall, and able to swim—so plan accordingly for families. Lifeguards oversee sessions, shoes are prohibited on the inflatables (bare feet or water socks only), and staff run a brief safety briefing before each launch. What makes this waterpark stand out is its setting: a former quarry whose steep rock walls funnel clear, cool water into deep swimming channels that feel remote despite being minutes from Harpers Ferry’s historic town center. Birds and riverine wildlife frequent the rim, so keep an eye out for kingfishers and herons while you climb; the open-water design also offers expansive sightlines that make parents more comfortable supervising energetic kids. Logistics are straightforward: tickets include entry, a PFD, and seating for non-participating companions, but bring sunscreen, a change of clothes, water, and snacks because on-site food is not currently available. Plan to leave jewelry secured and valuables locked in your vehicle or at the River Riders main office; the quarry runs rain or shine, and sessions move forward unless conditions create a safety concern. For photographers, golden hour softens the vertical quarry walls while midday brings saturated aquamarine water tones; aim for low-angle compositions near the entry point and close-ups on action around the Ninja course. Whether you’re booking a family outing, a birthday party, or a group session, the COMBO - WaterPark offers a concentrated burst of summer play in a dramatic, rock-framed basin that turns ordinary pool days into an active outdoor experience. Reservations are limited to maintain capacity—groups cap at one hundred participants per session—so book early via the River Riders reservation portal. Expect quick turnover between sessions and staff who prioritize safety and fun. If you have accessibility questions or medical concerns, contact the main office before booking. With predictable logistics, supplied PFDs, and a compact schedule, this waterpark is an easy, high-energy complement to a longer Harpers Ferry weekend that can include hiking, history, and river access nearby today.
moderate.
1.5 hours.
Moderate fitness recommended—participants should be comfortable swimming in open water and climbing unstable inflatables.
Yes. Much of the course sits over deep water; participants must be able to swim and PFDs are required and provided.
No. PFDs must remain securely fastened while in or on the water for safety reasons.
No. Dogs are not permitted on the inflatables, though other River Riders activities may allow pets with a PFD.
Yes. Certified lifeguards supervise each session and lead the safety briefing before participants enter the water.
Yes. Entry to the quarry waterpark requires a paid reservation; walk-ins are not permitted.
Arrive 30 minutes before your scheduled start to complete waivers, watch the safety briefing, and gear up for your session.
The attraction opens for the 2025 season in a historic Harpers Ferry setting known for 19th-century industrial and Civil War-era sites.
Keep the quarry clean by packing out trash, avoid disturbing wildlife at the rim, and follow staff instructions to minimize environmental impact.
River Riders is a full-service outdoor recreation outfitter based in Harpers Ferry, West Virginia, operating on the Potomac and Shenandoah Rivers. The company runs a diverse range of guided and self-guided experiences, including white water rafting, whitewater kayaking, flat water tubing, scenic biking tours, and the Potomac Play Pass for canoeing, kayaking, or paddleboarding. River Riders also offers multi-day and specialty experiences: a 3-Day Outdoor Adventure Camp for kids ages 9–14 that includes rafting, ziplining, and climbing; guided whitewater kayaking sessions for paddlers building skills; and the Whitewater and Whiskey event that pairs a guided raft trip with a distillery tour and tastings. For overnight guests, River Riders manages riverfront campground RV sites with full hookups and easy access to water sports, located about an hour from Washington, D.C., and Baltimore. Practical services include shuttle transportation for river launches, equipment and gear provided for guided trips, and a kennel rental option for dogs (owners must bring food and water bowls and ensure vaccinations are up to date). Safety, local river knowledge, and clear trip descriptions help visitors choose appropriate activities for families, teens, and adult groups. River Riders’ combination of guided adventures, scenic river access, and campground amenities makes it a convenient base for exploring Harpers Ferry and the surrounding Appalachian waterways.
Book with River Riders