ONCE a year, hundreds of caravans, motorhomes, camper trailers and off-road vehicles roll into Caulfield Racecourse in Victoria.

They line up alongside masses of tents and camping gear to create the Caravan, Camping & Touring Supershow - claimed as the largest of its kind in the southern hemisphere.

Executive officer of Caravan Industry Victoria Peter Wright said caravanning and camping holidays had grown in popularity, especially in recent years.

"From tents and camping equipment to caravans and new motorhomes, we're seeing great improvements in their design, comfort and range," he said.

"The same can be said of caravan holiday parks, many of which have undergone great renovations to facilities and amenities.

"As a result, we've seen Australians hitting the road in droves."

At this year's show, which starts next Wednesday, visitors will see all the latest caravans, motorhomes, campers and tent trailers.

It will also have camping and outdoor equipment, accessories, a large area devoted to tourism information and regional specialists who will be happy to give holiday advice.

"We've got a great line-up of industry experts to offer free, informative seminars each day," Peter said.

"There'll be activities for the kids, including Dora the Explorer on Saturday.

Source: weeklytimesnow.com.au