I am a 63 year old grandmother with two artificial knees, fused neck (after bad horse wreck) and a fused lower back. But I have been hiking all my life and am not about to give it up. Besides, my 7 dogs need their daily walks. We live in desert country, with lots of canyons and steep hills. Thanks to SPOT, I can hike off-trail and my husband can keep track at home. It's nice to know I can call for emergency help! Lots of rattlesnakes and mountain lions here...no people around. But I love the solitude and thanks to SPOT, I do not have to give it up! I also like to go on long trail rides by myself and SPOT is always there!