birdbrain, I love the Bradford Ridge Path. Parking is free and it's just fun hike, like Neogeo said it is more of a path but as Wizard said well defined. I'm a regular hiker as well and I found the challenge of climbing out rather fun, but I'm a sucker for that kind of thing haha!
I'm also taking my wife on Sept. 12 (just going for the day so no camping unfortunately), it'll be her first time at the springs and first time with naturism. Whenever I go I always hike nude and enjoy the springs that way as well, preferably on the weekdays due to minimal crowds and there are usually more like minded people at the springs.
Have a blast! Let us know how it goes!!!