My wife, son (8) and I went for a 1 hour ride today. We had a chance to briefly meet the horses before getting in the saddle, which was nice as my wife and son had never ridden before.
The guide's name was Teresa. We rode on Curly, Mocha and Buddy. All three were extremely docile and easy to control--the hardest part is getting them not to eat while walking. Teresa took us on a nice ride up a local mountain and back down--she is very knowledgeable about the area as well.
Both my wife and son enjoyed themselves thoroughly. Thanks Sandy and Teresa (and horses)!