Id really love to go visit the Blue Ridge Parkway but I havent a clue about it, Do you know about it?
Sure do, it's America's longest linear park! Runs through Virginia and North Carolina. Great for a hike!
Wow that sounds exciting! Are horses or vehicles allowed on it, or is it just foot only? 
Yes, there are horse trails and a major road runs through it as well. You can explore on horseback the spine of the Blue Ridge!
Great! I plan on riding my horse on it, it would be a good way to let my horses get excersize too. Is the trail dangerous at all? 
Park rangers from the National Park Service and United States Forest Service will help keep the trails safe to travel on.
Excellent, I would hate to have an accident and not be near a hospital, That kind of thing scares me. Do you happen to know the altitude of the trails, or do they go through forests and stuff? 
Sure, the whole Parkway ranges in elevation from 600 to 6000 feet above sea level, and they go through forests and along mountain trails.
Oh ok thank you for that bit of info, Ill have to be prepared and bring lots of water and food, Any other things I should know before I go there? 
If you make the whole hike, you could visit both Shenandoah National Park and the Great Smoky Mountains National Park in one trip!