Hi Terry!
You are in for so much fun with the
Wilderness Back Trail Adventure at Disney's Fort Wilderness Resort & Campground. I have done that Segway tour several times and I have a blast each time. Be sure to ask your guide to take a photo of you on your Segway before the experience concludes. It's a great keepsake from your adventure.
You will have no difficulty whatsoever traveling from
Trail's End Restaurant to the Bike Barn.
Disney's Fort Wilderness Resort & Campground has several internal resort bus routes that deliver Guests quickly and conveniently throughout the extensive resort. When you leave Trail's End Restaurant, walk in the direction opposite Bay Lake. You will quickly see a bus stop ahead of you. Just hop on the next bus which is scheduled to stop at the Meadow Trading Post. More than likely, this will be either the orange or yellow bus line. However, there will be a map right at the bus stop so you will know you're boarding the correct bus. Once you arrive at the Meadow Trading Post, disembark your bus. The Bike Barn is where you sign in for your Wilderness Back Trail Adventure and that is right behind the Meadow Trading Post.
Enjoy your time aboard your Segway!
Sending best wishes and pixie dust,
Jill