Authorities say Sara Levy was last seen in a canoe on the Saugatuck River near the Route 1 bridge around 4:30 p.m. Thursday.
Police said they discovered that Levy got out of the river and made her way to a local business, where she was captured on surveillance video.
Westport authorities say they received a call from a resident about a woman who matched Levy's description in Norwalk around 11:45 p.m. Norwalk officers confirmed it was her and checked on her welfare.