I'm in the same area as Oreo ( SF Bay ). I didn't see where she quoted prices, and am only familiar with the place I use.

I do dressage lessons on a lesson horse for $45 for about an hour (give or take like 10 minutes) It was the same price for my initial 1-1 lessons and with a small group of 2 or 3 others.

I think the barn I go to would be quite far for her to drive to though. I'm in the South Bay and it's about 45 minutes away. Coming from the East Bay it would be over an hour.

racingabout.wordpress.com where I babble about horse racing.