Beth & Rolf live in Bayswater, about 10 minutes walk from the Bayswater train station. It's about an hour on the train to central Melbourne from Bayswater. Without traffic, it's a 35-minute drive from Melbourne City.
Local places to stay include the Quality Inn Knox 6km away and the Golden Pebble 3km away. You could also stay in Ringwood if you wanted the convenience of a train station and shopping centre at your door. It's two stops closer to Melbourne CBD on the same line as Bayswater.
There are plenty of boutique places to stay in and around Olinda, in the Dandenong Ranges, which would be close to the Cuckoo Restaurant, cute cafes, trinket shops and lots of outdoorsy activities.
What to do
There's a lot to do locally, but if you're more interested in exploring Melbourne, you'd be better off staying closer to the city and heading up to the Cuckoo on the day.