How about some pictures?

You need a retaining wall. But first I think you should consult with a landscape architect or designer to get a plan going for what your landscape should look like. Then you can execute the plan yourselves or hire it done. Carolyn Albert-Kincl, ASID

Thanks for all the great ideas everyone and sorry I didn't explain the polycarbonate a bit better :) This is along the lines of what we'll be using... http://www.psp.co.nz/building-brands/corrugated-sheeting/suntuf-polycarbonate The area is an absolute sun trap and we're hoping to use it as an extension to our living space, especially on rainy days! I've just sent my husband out to get a few pots of different stains for is to try - darkest brown (cedar) and a lighter brown (rustic oak) both by Cabots + the black we already have. Hopefully we can decide between one of those! I probably should have mentioned we will have black aluminium pool fencing running along the top of the second retaining wall - so the real question is do we keep everything black (pool fencing, horizontal fence, retaining walls and pergola) or do we go with a dark (or even light) brown for the pergola and retaining walls.... We just keep going around in circles at the moment. Decisions, decisions! Thanks again :)

You don't need to put anything in it if you don't wish. It would look lovely paired with a couple of smaller glass and silver accessories on a silver tray. However, if you want something in it - have you thought of liquorice all sorts?? The mix of colours look fabulous in a glass jar and if you put it on the kitchen bench your visitors will love coming over!