Im fairly tall 6 foot 9 and a husky fella will this be a comfortable thing for me to do? Or is it small inside

I'm 6 foot five I weigh 275 lb I had to duck a couple of times some a little narrow but not too bad

It is not too bad. Will have to do some ducking, but not overly tight spaces. At 6'2" I was fully upright 95% of the time

It'll be tight, but if your mobile it's well worth it.

You should be able to do this. When path is wide at times ceiling is low, but when path is narrow, ceiling is high. Have fun

My wife is 6-1 she did had to bend down a little bit

It would not be 100% comfortable for you to do, but you should still do it because you can.

There are some areas that the ceiling is about 5ft tall, but its not big area. Maybe just 6-10ft.

Quite a few narrow areas and low areas. My son is 6'8 and I don't think he would have enjoyed it at all .