Qld island homes wash into ocean

At least three houses on Great Keppel Island have crumbled into the sea as cyclonic winds and waves batter the holiday destination.

Dramatic photos of the island's beachfront homes have been posted on Twitter, showing the facades and patios of houses washing into the water after Cyclone Marcia hit the central Queensland coast as a category five storm.

Margaret Gearin and about 20 other residents have abandoned their homes to bunker down in the bar area of the Great Keppel Island Hideaway holiday home.

"Three houses have gone into the ocean," she told AAP.

"The waves are pummelling the Hideaway. The bricks (of the patio floor) have been washed away."

She said it was hard to leave her home but the decision was made because the Hideaway has a sturdy roof.

"What matters in the end is that we're all OK," she said.

"It's starting to get even more wild here.

"I am feeling anxious."