The ape caves are really one long cave just over 2 miles long that was carved out thousands of years ago by lava. It was so neat to see the interior walls had this smooth rock.
I really enjoyed the hike and want to go again someday. I felt such a sense of accomplishment for our family to complete such a hard thing. I think maybe in five years the younger kids will be old enough to really enjoy it and not need so much help.
For anyone thinking about going to the Ape caves I would definitely recommend for any must do Washington list. Just keep in mind that it is hard, but doable. I would say anyone 8 and up can probably do it with some help although that depends a lot on the personality of the child. Anyone under 8 will need a considerable amount of help to do the harder side of the cave. And I think anyone who can walk can do the easier side.