You're off to Hangzhou, you're off to Hangzhou! Is this the view you're going to see? I asked myself, as I searched up images of the place... just to have a peek at the kind of views your eyes will be immersed in.
At this point, after weeks of general busyness, you're probably drunk with tiredness. The whole debacle with Kundasang + Miri must have drove you to the wall. Don't worry too much about it -- if it happens, it happens. I'm thinking day trips in general would be a better idea. Anyway, we'll discuss it when I get back. I think, once we're together, with all this physical distance finally closed in... it might be easier to organise something.
Holidays can sometimes turn out to not feel like holidays at all, amidst busyness especially (I think we've both experienced this), but I hope that these few days will be the opposite for you. Enjoy the time away with your two boys! Try the local food. Go to the night markets. Maybe even have the local McD breakfast! I know your plans aren't solid solid, and contrary to popular belief, I think that's actually a really good thing! Thinking back to our Vietnam trip... it was the unplanned stuff during our time there that stuck out the most in my memory... I wouldn't be surprised if that's the same for you, come Hangzhou.
Wishing you all safe travels; can't wait to see your beautiful faces in a week's time!