Our Staff & Training
Jeff Greiner, Owner
Managing owner, Jeff Greiner and his family have grown up in the outdoor adventure industry. In 1971 Jeff's parents started the first whitewater rafting business (Wildwater, Ltd.) in the Southeast U.S. on the Chattooga River. That small family business has grown into one of the largest and most respected professional outfitters in the United States. The Greiner's have been involved in setting industry standards for the outdoor adventure industry for over 40 years including river and forest protection standards for outfitters. The family also helped form the eastern and then national professional outfitters association (America Outdoors Association) created to foster awareness, education, development, and growth management for professional guiding services on public and private lands across the country. Jeff has served on the national Board of Directors of AOA for over 10 years.
Growing up on the Chattooga River and learning the family business, Jeff loved sharing the beauty and adventure of the outdoors with Wildwater guests. In 2006, being the President of Wildwater Ltd.’s four locations on the Nantahala, Ocoee, Chattooga, and Pigeon Rivers, Jeff had a dream to bring outdoor adventure to Asheville city limits. Under Jeff’s direction, ACA has grown from a few ziplines to a family adventure destination with 8 different activities.
Jeff has over 25 years’ experience as a professional ropes, zipline, and aerial adventure guide, trainer, manager, and owner/operator. Jeff is an ACCT certified CCM (Challenge Course Manager) with a special emphasis on zipline operations and management. Living in Asheville, Jeff and his wife, Sheena, have three children that love hiking, camping, paddling, skiing/boarding, and sharing anything related to the great outdoors.
Sheena Greiner, Co-Owner
Sheena Greiner is a full time elementary school teacher with a strong background and passion for special education. Although she will tell you that she is just a teacher and doesn’t know much about the business, her guidance and commitment to giving back and supporting the community has led to ACA donating over $200,000 over five years to numerous organizations including the NC Autism Society, Camp Lakey Gap (for youth and adults on the spectrum), Asheville GreenWorks, RiverLink, Buncombe and Henderson County Schools, and many, many more. She has also served as a business and education advisor at ACA.
Chad Clark, Manager
Chad graduated from Augusta State University with a Bachelor’s Degree in Psychology. After graduating from college he began his career in outdoor recreation and experiential education, working as a challenge course ("ropes course") leader and facilitator on St. Simons Island, GA. In 2001 he began working for a challenge course builder, Challenge Design Innovations, as a trainer, builder, and inspector. He spent several years traveling around the country inspecting zip lines and obstacle courses while also training staff to safely operate those courses.
In 2006, Chad became manager and eventually owner of the challenge course in St. Simons. The company, Peak Pursuits Inc. is an adventure based team building program provider. In February of 2015 he moved to Asheville to be closer to his family and pursued interests in outdoor recreation. Chad has worked at ACA since then as a zipline ranger and trainer, team building facilitator, and currently as a manager.
Chad chose ACA as his new home because of the family atmosphere and the wide variety of aerial and team building adventures offered. Asheville has proven to be the perfect place to feed his other passions such as hiking, camping, and bluegrass music.
Callie Stevens, Manager
Callie Stevens is originally from Georgia where she grew up regularly camping with her family and spending free time outside. She graduated from Young Harris College in 2012 with a Bachelor’s Degree in Outdoor Education. Throughout college, Callie worked at Elachee Nature Center’s science camp. After graduation she returned to work with the camp as a Naturalist, but eventually realized that she missed the adventure side of the outdoor education field.
Callie moved to the mountains of North Carolina to work at Kanuga Conference Center. During the school year she taught at Mountain Trail Outdoor School and in the summer worked with the conference center leading high adventure activities. Then she joined the Adventure Center of Asheville as part of the Ranger Team and as a team building facilitator. She loves being able to provide a variety of adventure experiences for guest while teaching about the natural world around us.
Nick Christofalos, Manager
Nick Christofalos is a life-long outdoor enthusiast with a 30+ year history of providing an excellent client experience in a variety of industries and settings. Nick relocated to Asheville in 2014 in order to be closer to family and to experience the phenomenal biking terrain found in the Western North Carolina area. An avid cyclist, Nick rides for the Industry Nine cycling team and competes in several disciplines including cross, road, gravel and mountain. Nick has owned and operated a multitude of businesses since 1995, including a retail cycle shop north of Chicago.
He enjoys helping others of all ages experience the outdoors in new ways and on different levels. Nick's previous positions also enabled him to work with thousands of young people for the past 16 years, inspiring and guiding them, and sharing his love for music and biking. Nick and his wife, Shelia, have one daughter Alexandra who rides for the Appalachian State University Cycling Team. As a family, they toured the National and State Park system in their 28 foot RV exploring the US from Maine to Washington state. Nick has been a strong advocate for cycling for many years as a founder a non-profit cycling club, a host/organizer for USA Cycling sanctioned events, a founder of a youth biking club, and a volunteer at countless rides and races.
Nick enjoys his work at ACA as it gives him the opportunity to ensure that guests have an exceptional experience from the moment they arrive at the Adventure Center. Helping visitors and residents explore and enjoy Asheville's beautiful outdoor playground is a role that he embraces.
Sarah L. Dickson, Group Sales
Sarah joined the Adventure Center of Asheville in 2014 as the group sales coordinator. A native of Asheville, Sarah has worked in the tourism industry with hotels, attractions and as a marketing consultant in WNC for 21 years. Currently, at the Adventure Center of Asheville, Sarah books youth and adult groups of ten or more people on at least one of our six activities in Asheville and for those who want a “wilderness” adventure at the Wildwater, Ltd. Pigeon and Nantahala River locations.
Groups include homeschool, scout, school and church groups, corporate groups, clubs and organizations, sports teams, camps, associations, tour groups and birthday parties. The Adventure Center of Asheville is the perfect place for teambuilding, experiential field trips, picnics or retreats, office outings, and just a great way to get outdoors in a challenging atmosphere. “Since we are locally and family owned and are open all year, we can accommodate almost any group and their “special occasion” with a truly “Asheville” adventure.
Sarah spends time with her husband, two boys and dog enjoying all the wonderful activities, culture, entertainment and “foodtopian” options in Western North Carolina.
Sarah can be reached at firstname.lastname@example.org or 828.450.3400.
As a division of Wildwater, with 40+ years of leadership and expertise, Adventure America Zipline Canopy Tours and The Adventure Center of Asheville benefits from that long standing experience and standard setting leadership in the outdoor adventure industry. Canopy Rangers and Park Rangers participate in an extensive 40+ hours of leadership, service, interpretive, and technical skills training conducted by a combination of our top team trainers and outside experts guided by the standards and directives of the ACCT. The Association of Challenge Course Technology(ACCT) is the largest and most widely accepted standards and procedures organization for zipline and adventure park construction, operations, and training in the US. In addition to high level rescue and evacuation training, Rangers are guided through detailed scenarios of "soft skills" that will help them assist our valued Guests in creating an educational and supportive environment for growth and success as they challenge their fears or expand their comfort zones. Rangers develop a clear understanding of both supporting and encouraging success. These soft skills are what set us apart as an experience vs. just an adrenaline ride. Our goal as Rangers is to send each guest away with a better sense of themselves and their surroundings. Adventure and fun is a great basis for this goal."