Luna Kuhn, 8, of Lebanon, prepares to kick up into a hand stand during her class at Treehouse Gymnastics in Lebanon, N.H., on Wednesday, Sept. 4, 2025. Treehouse Gymnastics is the brainchild of 46-year-old Lebanon resident Annie Arrington, who also leads the Community Chorus at Upper Valley Music Center. Cabot Cassidy, 6, of Canaan, flips onto a soft landing pad during a class at Treehouse Gymnastics in Lebanon, N.H., on Wednesday, Sept. 4, 2025. Anne-Marie Lemal tries to get Cosette Denzer, 5, of Grafton, to use her muscles while swinging on a bar in class at Treehouse Gymnastics, a new, non-competitive gymnastics gym in Lebanon, N.H., on Wednesday, Sept. 4, 2025. Annie Arrington, owner of Treehouse Gymnastics, left, closes a class with a gymnastics salute at her gym in the former Lebanon Junior High School building in Lebanon, N.H., on Wednesday, Sept. 4, 2025.