ABC News June 7, 2016

Manatee Caught Snacking on Grass in Flooded Florida Backyard

WATCH: Rising Waters Push Manatee Into Florida Woman's Backyard

Who let the manatees out?

Heavy rains from Tropical Storm Colin have transformed some coastal Florida backyards into rivers, and that's where one homeowner has spotted a couple of “sea cows” over the past few days, just munching on her lawn.

Nancy Smith of St. Petersburg captured one of the big guys on video, lounging around without a care in the world. The herbivores can grow up to the 13-feet long and 1,300 pounds.

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“Everyone loves manatees,” Smith told ABC Tampa affiliate WFTS-TV. “They are my gentle giants.”

The downpour caused the tide to rise above the seawall, pushing the aquatic mammals further inland.

Manatees "usually spend up to eight hours a day grazing on seagrasses and other aquatic plants,” the Florida Fish and Wildlife Conservation Commission notes.