I hope you're not suffering from jet-lag It's been years since the last time we've met, but you haven't changed at all!
It was very nice to visit the limestone cave we went together, especially on a hot summer day like that day. Inside of the cave was pretty dark and I was afraid that your daughters would be scared, but they are more than OK! Of course they are; they are the children of you and your wife who got tough mentality. They're tough enough to mimic ghost in the dark.
It was the first time to go into a limestone cave in summer time, but it has already become one of my favorite way to spend a hot summer day.
As you have noticed, my English skill has been decaying so radically over years. Since you use such a right words and expressions, it is inevitable to notice how poor my vocabulary becomes... Fall of a genius with negligence. I should use the language in daily life. I shall wath "Pokemon" English version everyday for a start.