With flames on their doorstep and an entire town evacuated, staff at the Kangaroo Island Wildlife Park had a decision to make.

Abandon their charges, or stay and fight.

"We couldn't move them, so we had to stay and defend," park owner Sam Mitchell told 7NEWS.

Despite evacuation warnings, Mitchell and five close family members remained in the face of fire, to protect the property and about 700 animals in their care.

The inferno arrived just hours after a GoFundMe for the organisation, which has been working tirelessly to rescue injured wildlife on the fire-ravaged island, hit $1 million in donations.

With the assistance of the Country Fire Service, the team spent hours upon hours putting out spot fires and watching as the blaze roared on their doorstep.

Flames came dangerously close to the edge of the Wildlife Park, with the kangaroo silhouette marking the park's entrance. Credit: Supplied

"The fire came from both sides of us," Mitchell said.

"When the wind change came, it blew other fires toward us.

Chevron Right Icon 'We could see flames on the horizon.'

"We could see flames on the horizon but we didn't know where they were coming from."

More on 7NEWS.com.au

With flames coming within 100 metres of the property, the team worked tirelessly until about 4.30am when the worst of the threat was over.

Incredibly, all animals in their care have survived.

Hundreds of joeys have been rescued from fire-ravaged areas. Credit: Kangaroo Island Wildlife Park

But the battle isn't over, with Mitchell saying recovery efforts have begun to restore power to the park and clear roads so assistance can come in.

"Sending a couple of army boys to help out," he said.

Aerial shots of Vivonne Bay reveal the incredible scale of the fires. Credit: Instagram / Trent Lawson/@tmadventure

The focus is now on continuing to care for the hundreds of koalas and other wildlife injured in the devastating fires.

Emergency warnings remain in place for large parts of Kangaroo Island as Country Fire Service crews continue to battle out-of-control blazes.

Anyone wishing to donate to the Kangaroo Island Wildlife Park can do so here.