There are two things here, a show and tell, or look and see.
Then there is the possibility of an outing.
I would suggest a show and tell needs a bit of a think regarding place, with a plan B for inclement weather.
As far as a photographic excursion goes, yep, anything except the city.
Anywhere we go will be difficult for someone, some people live west, some north etcetera.
We need to choose an area that is conducive to general view camera usage, meaning friendly for tripods. Remembering of course that plenty of people don't have view cameras, but they may wish to make usage of their tripod relatively easily.
I'll give you a couple of places that I and the missus will be visiting over winter and into early spring for photography. We generally go on a Saturday, this allows one to stay until sunset, without incurring a hard time trying to get to work the next day.
Kilcunda, fabulous rock formations accessible within a 5 minute walk to the beach, hours of fun. If the surf is up, the waves breaking over the rocks with the tide near in can be spectacular. The car park is on the Western side about 100-200 metres outside the main drag of the town, so to speak.
Brisbane Ranges, with the possibility of visiting Steiglitz which is actually in the park.
Queenscliff, there is an historic railway station, but better still there are loads of interesting steam trains and carriages. You can just walk around taking pictures pretty much to your hearts content.
I have quite a few other places, but I wouldn't wish to hog it. These places give southern, western and south western points from Melbourne that take about 1½ hours to 2½ hours from general suburbia.
Early August would give good notice for both items and appears to be suitable for most who have responded.
Mick.