Have you tried the OGA?
We've talked about plenty of classes for kids here on urbanMamas, including Tumble and Roll, toddler swim, dance class, and mama 'n' me fitness. Emily asks whether anyone has had experience with the Oregon Gymnastics Academy and seeks other suggestions:
Has anyone had any experience (good or bad) with the StarBabies class at the Oregon Gymnastics Academy? I thought it would be fun to find a tumbling class for my son and so far StarBabies is the only thing I have found for the his age group (19 months). Any other ideas for tumbling classes for the very young?