My family was hoping to do some horseback riding when we come to Breckenridge in a few weeks. I'm having a little trouble finding a company that offers trail rides for my 4 year old. He would be happy riding with an adult. I've looked at Platte Ranch and Rusty Spur and both look really great - does anyone know if either of these would allow a 4 year old to ride? Or do you know of somewhere that will? Thank you in advance for any advice.