The biggest bulk sell-off of crocodiles in Australian history is underway in Western Australia's north.

More than 50 of the reptiles are on the market as the owner of the Wyndham Crocodile Park attempts to sell the former tourism site and crocodile farm.

The park has been on the market for the past year and owner Mark Douglas hopes selling off the crocodiles may make a land sale easier.

"We've got about 60 animals on the farm," he said.

"About 30 of those are large males and the rest are females. They are breeders and they do produce eggs on the farm.

"They are probably worth about $10,000 to 15,000 each, the larger fellows, so there's probably over $100,000 worth of crocodiles.

"We're just keen to see them go to a new home, so we're willing to pass them on relatively cheap.

"We've got some of the biggest crocodiles out of all of the parks here, some of the oldest crocodiles that have been in captivity, so we don't want to see them destroyed.

"It would be good to see them go to nice new homes, otherwise they'll be turned into skins."

Struggling to compete in crocodile leather market

Mr Douglas says the small-scale farm can no longer compete with the Northern Territory when it comes to producing crocodile leather for the fashion market and cannot survive economically based on tourism alone.

"The key challenge is water costs, power costs and obviously being able to breed enough crocs for the skin trade," he said.

"Obviously we're limited in the number of wild eggs we are allowed to collect from the wild and we can't produce enough eggs on the farm to keep up with today's standards."

A move towards mining in the region means waterfront land has also become highly sought after.

"This whole waterfront division where the crocodile farm is is basically going to be developed into an export shipping area, and foreshore land is worth more than crocodile land," Mr Douglas said.

He has been hoping to garner interest from anyone in Kununurra, about 100 kilometres south, to buy the whole collection.

"There's a great opportunity there, there's a lot of tourism going through Kununurra, so there's a big opportunity there but you need that passion to go with it," he said.

"What I'd like to see is a farmer from around the Kununurra area, with access to irrigated water, start up their own farm.

"You've got to have a passion for crocodiles but they are very easy to maintain once you've got your facilities set up and they are easy to look after, they are a lot of fun."

There has been a blunt "no" to anybody thinking of buying a croc as a pet.

Keeping a crocodile in your backyard can carry a $10,000 fine.