We are doing Grand Australia & New Zealand in Sept/Oct 2022 and am curious about suggestions for clothing. I know our weather can vary & to wear layers, etc. Hiking boots or decent walking shoes? That type of thing. Do we need much in the way of dressy stuff & how dressy? We just did a Viking/Douro cruise...but we haven't done Tauck before. Anything else we should bring with us other than the basics?