I used to take my kids to my hiking trips as often as possible. While they were 1 and 2 years old I carried them to the top of Yosemite Falls on my back. For the next few years they loved to go hiking with me and seemed to enjoy it whenever it got more "challenging", which means when there was some sort of climbing/scrambling involved. But in the last few years they started to "hate" hiking/climbing or anything that involves a lot of walking. They are now 13 (girl) and 11 (boy) years old. One of the last rare outings was a few years ago, which they seemed to enjoy as long as there was scrambling (see photos).
Now I really would like them to get more interested in it again since I think they are old enough to hike with me (of course age-appropriate).
I am sure that is an issue that many of you have encountered and hopefully overcome and resolved. I would appreciate any advice.