The south shore of Oahu is being invaded by something strange from sea, that even has sand crabs running for cover.
"There are probably millions I'd say," says beach goer Scott Paddock.
If you look closely the entire shoreline is dotted with tiny, purple creatures all curled up.
"Looks like it has about it 6 legs on each side," says Lake. "Yeah it's like an avatar crab."
"When something washes up like this you don't know what to expect, maybe Tsunami stuff," says Kuwana.
It's something many have never seen before. And no one we found knew what they were.
"I definitely want to know where they came from and what they are all about," says Paddock.
Even the biologists at the Waikiki Aquarium are scratching their heads. They've been getting reports of the pea-sized crabs from Kahala to Ala Moana, all this week.
"The lifeguard called and asked what these things were because she had reports of surfers were actually have these things crawl up on their boards and onto them," says Norton Chan, Waikiki Aquarium Biologist.
He can't find a specific name for the animal - all he knows is they are some type of crab still in the larvae stage.
"What you are seeing is a swimming stage probably a few more molts before they settle into their actual crab stage itself," says Chan.