Venturing into the desert, I came across this little guy. I helped him out and then he rewarded me by upgrading my beetle.
It now has pincers that be used to pick up and drop items (such as bombs).
I used it to drop some bombs into some basketball-style buckets to proceed. And of course just using the beetle anyway is fun to look around and see things you otherwise couldn’t see. Eventually I met up with my Goron friend at what apparently is the Temple of Time.
He saw Zelda and that mysterious woman go inside, but an explosion made the temple inaccessible. So I have to find another way inside. Another little guy I ran into told me that the Lanayru Mining Facility is connected to the Temple of Time underground. I reached the power generator for the machine that opens the gate for the Mining Facility, but I first have to activate three power nodes. I activated one of them, but then I saved and quit my game. I’ll get the others next time.