Unfortunately, there are very tight rock formations everywhere. You may want to try the ADA wheelchair accessible rock trails.

No parking fees. They do clear the park before the enchanted lights begin

My husband and son are both over 6' 1" and 200 pounds plus. They made it through both tight paths without issue. The struggle I witnessed from another visitor was more mental. If you are claustrophobic there will be a mental challenge to work through when you see the tight space for sure. There is an ADA path if you prefer that option. I would encourage to still go and try both passes. You and your shirt may come into contact with rock as long as you are prepared for that.

There is a solid bridge also so you don’t have to go over the suspension bridge. You don’t really have to get close to many edges for long that I can recall. Also there is a road leading up to their parking lot so you don’t have to go on the incline either. I hope that’s helpful to you and that you have a great visit.

Yes, you have to pay admission and go through Rock City.

I know they offer a military discount, but unsure about a first responders discount.

This is a tough question. I personally do not know of any companies in Atlanta that organize/offer a day trip to Rock City. There are companies that offer tours of 4 days or more from Atlanta but they also include visiting multiple sites in multiple cities. There are sites that you can do research on about taking a bus or possibly an Uber but unfortunately I cannot give you that information here. Good luck getting the additional information you seek. Have fun if/when you get there.

yeah I would def. call them first and ask, but I would think no to be honest. I could be wrong though

I saw a man with a dog on a leash in one of my pictures of the trails on Lookout Mountain from my album from our vacation there in June of this year. I believe this might answer your question, but you might also check the Travel Forum for Lookout Mountain in Chattanooga, TN.