Melburnians will be able to support regional businesses, which have been hit hard by the recent bushfires as well as encourage visitors to return to the High Country.

High Country Comeback will showcase produce, wine, beer, gifts, experiences and homegrown musicians.

Event spokeswoman Janelle Marsden-Boynton, whose own business, Feathertop Wines, has been severely impacted by the tourism downturn this summer, said the idea of a High Country Comeback quickly gained momentum among growers.

"We all rely on the summer trade with many businesses normally taking over 75 per cent of their annual income during this period," she said.

"High Country businesses need the funds right now to stay afloat so we're hoping Melburnians turn out in droves to help them through this very difficult time."

It will run on Sunday from 11am to 5pm at The Timber Yard, Port Melbourne.