Looks like a beautiful place to ride, and a group of riders with a good attitude; probably having lots of fun.
Of course, no need in even mentioning "safety" since that's not part of either side of this equation ... and a few of those contraptions have no hope of navigating some of the roads, or the city streets, that are there ... Bike Night Only!
Fay has no interest in bike-touring Asia, any part of it. If I go (either with a local friend or part of an organized tour) it'll be just me!!
Lannis