Naomi Mahamuth and Nick Valera opened VIM GYM Tumbling and Cheer Center, 105 Uhland Road, San Marcos, on July 6. The studio provides a full-size gymnastics spring floor on which people of all ages can train for tumbling, stunting, martial arts, acrobatics and competitive cheer. Instructional classes are split up by age and skill level. 512-766-4496.