It's $60 per person for an hour trail ride. You should schedule at least a week to a week and a half in advance. I do mornings before 1 p.m. for trail rides during the weekdays and in the weekends it's after 4 p.m.
I believe the costs are on the website http://misty-acres-ravensdale-wa.weebly.com/
Thanks! Your answer is awaiting moderation.