It's weird how we can take nearby wonders for granted a bit. Growing up in eastern Pennsylvania, I lived no more that 15 minutes from an awesome state park that has over 24 beautiful waterfalls; some around 100 feet tall. I never even went to the place until I was in my 30's. :-/ I hope you do make it back to see Hopewell Rocks before they do fall over. One of the large popular formations called Elephant Rock collapsed in 2016.