Several campers in Newaygo County were shocked -- not literally -- this weekend to spot freshwater jellyfish in Diamond Lake.
"You don't expect jellyfish to be in Michigan, let alone here on this little lake," said Timothy Smith of Grand Haven.
Smith and other kayakers came across the swarm of jellyfish.
The non-native species is home to one region in China, but they have been reported in Michigan since the 1930s, according to the United States Geological Survey. Experts said these penny-sized invertebrates are not dangerous to humans nor Michigan's ecological system.
They have been reported in lakes throughout the United States.
Because of their size, if you're stung by one of their tentacles, expects say you might not even feel it. The jellyfish are believed to prefer warm water, so they'll likely stick around until early fall.