Answer:
Upon me you can tread, though softly under cover. And I will take you places, that you have yet to discover. I'm high, and I'm low, though flat in the middle. And though a joy to the children, adults think of me little.
Bright as diamonds, Loud as thunder, Never still, A thing of wonder.
It is worldwide, but once only a spider could weave one
It doesn't live within a house, nor does it live without. Most will use it when they come in, and again when they go out.
I work when I play and play when I work.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?