It took four staff to haul the endangered creature back to sea, just the latest in a string of turtle rescues along the country's devastated coast.
"The turtle was really large and it got stuck in a pile of rubbish, lying almost upside down," Adi Ayangsyah, a member of a search and rescue team in hard-hit Lampung on Sumatra island, told AFP on Friday.
He said the turtle was "probably about 30 kilograms". This week, about 15 other turtles were rescued in the same area.
Indonesia rescuers scramble to reach tsunami-struck towns as toll tops 400
"We think they were swept ashore by the tsunami," said Teguh Ismail, head of Lampung's conservation agency. "But they didn't have any wounds so we got them back in the water."
An eruption of the Anak Krakatoa volcano, which sits in the middle of the Sunda Strait between Java and Sumatra islands, caused a section of the crater to collapse and slide into the ocean, triggering the killer tsunami on Saturday evening.
Indonesia hikes danger level for deadly tsunami volcano
On Friday, the death toll stood at 430 with some 159 still missing.
Hopes for finding any survivors are all but gone, but the hunt isn't limited to human victims.
"We'll keep our eye out for other stranded turtles as well," Ayangsyah said. "For us, all lives matter. Human or animal -- we'll try to rescue them all."
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