Jane Hannigan is great. Larkspur has a heated indoor, to take the chill off the coldest days. That is a real luxury! Jane and Sibley Hannigan host Mary Wanless twice a year. Jane Karol is at Bear Spot, which is the fanciest barn (and most expensive, I think) I’ve seen. She runs some clinics, including with Arthur Kottas. I believe that both the Hannigans and Jane Karol are most interested in horses in full training, but I could be wrong. The facility in Georgetown is Twisdenwood, which, when I was there, needed some maintenance. It was once a TB breeding farm, and has a great track around the acreage. However, it usually has hunter jumper trainers and horses (I think it has over 70 stalls) and in the winter the single indoor can be crowded with jumps and lessons… But again, that was the way it was a few years ago. I live in Boston and do a reverse commute to the horses. I leave at 6 am to ride. I go north twice during the week and leave the barn to return to Boston at 9. This is doable, returning on 93 or 95/Route 1. I check Google Maps traffic and pick the best route, and can usually return in 50 minutes. The ride out is faster (43 miles in 40 minutes). I cannot go to Concord/Littleton because the ride back to Boston, even after 9 am, is impossible. So I am at a backyard cowboy barn, without a regulation dressage arena, but Sibley Hannigan comes to the area several times a month and is a great deal of fun to work with. If you go out to Acton to reconnoiter, be sure to have dinner at Spriggs! The owner, Martha, is a dressage rider.