I was born/raised on HHI and must say dressage was a foreign concept until I moved away. We had a dressage instructor come in and clinic once at the jumper barn I was at.
However, Tidelands CT shows have now expanded to the Beaufort area. I would contact Christy Mackenass (sp?) and see who she knows in the area.
I’m up in Summerville now, and I’d love to meet more dressage folks! I use Valerie Swyghert, who travels down here a few times a month. I’ve never ridden with Michelle Folden but ive seen her clinic up in NC and I really like/respect her. But she is very far (2+ hours) from HHI.
Sue Selvey is also in the Charleston area.
But if you’re going to haul 2+ hours to ride with an instructor, I encourage you to go west to Aiken/Augusta. Valerie teaches out that way and that’s the horse Mecca.
Hope that helps!