About Bigwood Fitness

Our Story

Bigwood Fitness was founded in March of 2011. Owners, Rob Driemeyer and Donnie Green, have always been excited and passionate about fitness, and when the opportunity presented itself to purchase the gym, they decided “why not?!”. Our business is about helping people become their best self by reaching their personal fitness goals. It’s the people that get us excited about what we do each and every day!

Mission Statement

Our goal is to ensure our members are offered state of the art equipment at a reasonable price. Bigwood Fitness “The Working Class Gym”

Our Location

Our Team

BWF-Staff--Donnie Green

Donnie Green

Donnie Green was born and raised in Orem, Utah he is married to his wife of 17 years NiCole and they have 4 children Isabelle, Kennedy, Sophie and Rhone they have lived in the Wood River Valley since 2008. Throughout his life he has enjoyed the outdoors and has been very active in sports. Growing up his main sports were Baseball and Wrestling and he played both throughout High School. After High School he developed a passion for weight training and shortly after started realizing his dream to personal train and open a gym.

In 2011 he accomplished that dream by opening Bigwood Fitness along with co-owner Rob Driemeyer. Donnie is also Co-owner of KDR CrossFit and the Varsity Baseball Coach at Wood River High School. He has also worked for Albertsons for 20 years and is currently the General Manager for the Hailey store. Donnie is currently working towards his NASM certification to expand his experience and knowledge of fitness. He enjoys getting to know his clients and helping them achieve their goals through various ways of motivation. He is very energetic and has a love of life and fitness and believes you can achieve anything you put your mind to no matter what it is! When Donnie is not coaching or training he enjoys spending time with his family, being in the outdoors mountain biking, skiing, snowboarding, playing baseball and doing CrossFit.

Favorite quote: “You have two choices; get busy living or get busy dying.”


  • CrossFit Level 1 Trainer
  • Pursuing NASM Personal Training certification

BWF-Staff--Rob Driemeyer

Rob Driemeyer

Rob grew up in Meridian, Idaho an only (and wild) child. Interested in anything in front of him, his mother enrolled him in every sport she could to keep him out of trouble. 8 years of Baseball, Basketball, Wrestling, 3 years football and 14 years of Soccer. Rob was enlisted year around in sports. His love for sports and fitness evolved into being a personal trainer for Idaho Athletic Club and pursuing further education in fitness. Rob Moved to the Wood River Valley in 2002 with Albertson’s, and continued his care for sport and fitness by exercising at Blaine County Fitness while playing county sports.

In 2011 Rob took his fitness to the next level when he and Co-owner Donnie Green bought the facility they trained in, becoming Bigwood Fitness. In 2013 while training at his local community center, home to Bigwood Fitness, Rob’s ACE certification as a personal trainer left him yearning for more than your average Boot camp. Referred to him by a good friend, he started his addiction with CrossFit by viewing and following CrossFit.com. Rob knew if he were to up the ante he would have to get certified. Shortly after enrolling, visiting, and passing his CrossFit Level One Trainer course he began to pursue coaching. He has been training and coaching at Bigwood Fitness and KDR CrossFit since then, and continues the evolution of fitness for himself and his clients.

Rob continues to work as an Assistant General Manager of Albertsons Hailey/Sun Valley. This experience allows Rob to blend an economical nutrition style, group organizational skills, and coaching style of employees and students, with his approach to athletes at Bigwood Fitness and KDR CrossFit. Rob lives in Hailey, ID with his wife Lillian and dog Trigger. When not being a Grocer, training, or coaching, he enjoys being outside, Hiking, Snowboarding, and Fishing…and if the time is right, a tall glass of wine!


  • CrossFit Level 1 Trainer
  • Pursuing NASM Personal Training certification
Rob’s Mojo Song: Tut Tut Child – ‘Dance to it’

BWF-Staff--Kenny Nelson

General Manger/Trainer
Kenny Nelson

Kenny Nelson was born 1981 in Hailey, Idaho. Kenny has lived here, attended school, worked and played sports his entire life. Kenny’s main interest in fitness is based on being fit to enjoy and excel in sports as well as in life. Kenny was a three sport athlete in high school and played baseball while attending college at CSI in Twin Falls and Concordia University in Portland, Oregon. Kenny enjoys coaching people and instructing them in training for health and fitness. It is Kenny’s goal to know his clients by name, occupation, and interests in order to personalize a program to meet their needs. Kenny stresses the importance of taking your fitness seriously in order to meet each individual’s goals. It takes knowledge, creativity, and persistence to achieve that. Kenny is married to Shanell and they have two wonderful sons Dyson and Cooper. Kenny is part owner of KDR CrossFit located in the basement of Bigwood Fitness. In his spare time Kenny’s hobbies include playing basketball, baseball, snowboarding, Crossfit, and carpentry.


  • CrossFit Level 1 Trainer
  • Pursuing NASM Personal Training certification

BWF-Staff-Kelsey Johndrow

Yoga Instructor
Kelsey Johndrow

​Kelsey grew up in the green mountains of Vermont with a strong curiosity ​in regards to the mind/body connection. She began practicing asana at 10 years old while on a wilderness expedition when one of the guides taught her the pose sequence known as surya namaskar (sun salutation). She continued the study of asana on her own while playing various team sports including soccer, basketball and downhill ski racing.

After a season of college lacrosse she decided to leave the competitive sports world and focus more on Yoga. Throughout her studies at the University of Vermont she added other yoga practices to her life, including meditation and study of the more esoteric aspects of the tradition. Recently she has been intrigued by the physical connection of the neurons and nerves through out the body as well as maximizing anatomical function. As an avid reader she keeps current on peer reviewed studies as well as anecdotal accounts regarding physical activity, mental capacity, and human development.

Kelsey is currently recognized by Yoga Alliance as a Registered Yoga Teacher at the 200 hour level and she is in the process of working towards her 500 hour certification; more information is available at her website www.kelseyjohndrow.com.

BWF-Staff--Freddy Monjaras

Bootcamp Instructor
Freddy Monjaras

Bootcamp Instructor
Floyd Padilla

My name is Floyd Padilla and I was born and raised in Twin Falls, Idaho. Growing up, I enjoyed being active in sports like football, wrestling, running, boxing, and weight training.  Later on, I joined the Navy after High school and was stationed on the USS Nimitz in Washington state.  I then attended Green River College in Seattle, where I received my degree in Criminal Justice and Photography.  Currently, I enjoy working on my photography business and working with autistic students.  I also teach students photography and videography in an after school club, where we work on our school yearbook, website, and put a news announcement together that we air every Friday.  In my free time, I enjoy helping others, love to ski, longboard, bike, kayak, hike, and most of all spend time with my lovely wife.

BWF-Staff--Amber larna

Bootcamp Instructor
Amber Larna

Amber Larna was born in the Wood River Valley and moved to Twin Falls at 7 where she was raised. She started really getting into fitness about ten years ago and from there her interests grew. She is a personal trainer and group fitness certified through American Council on Exercise (ACE). She is also Kettle Bell 1 certified and TRX certified. When she is not busy working for the Drug Coalition or in the gym training and coaching Amber absolutely loves running the trails, hiking, mountain biking, and just being outside in this great valley!  She loves being a Big Mama to her boys and daisies on a sun shiny day with her husband of 15 years! 

BWF-Staff--deb fox

Spin Instructor
Deb Fox