I am so sorry about your accident! We had won a horseback tour a couple years back. Had no idea that we were going to be climbing steep peaks laden with rocky paths! One girl started screaming and then her horse went nuts. Luckily, I was able to turn my horse around so she didn't get spooked. Said a lot of Hail Marys and let the horse do her thing. Figured she did this for a living and would get me through it. The run through the sand on the beach was wonderful, but the natural pool was nothing special. I even skinned my knee on the slimy rocks. The free beverages turned out to be from a cooler with opened two liter bottles and paper cups. Glad we had water with us.
Once the horses knew they were going back to the ranch they started to bolt. This was not a ride for beginners! When the guide returned to the ranch, he almost demanded a tip from all.
I would not recommend this place. Safety is key in a foreign country!