A spokesperson for the Massachusetts State Police confirmed early Monday evening that the search had been called off until Tuesday morning, when it will resume at the same level as it left off.
On Monday, the search had focused on the "left" side of the pond, as the missing man was thought to have been swimming toward or from the Lincoln shoreline after departing from the main beach.
Throughout the day, state and local crews had scoured the surface, shores and depths of the 100-foot-deep kettle pond for a 63-year-old Lincoln resident last seen before attempting to swim across the pond Sunday evening.
Walden Pond, a state reservation, will remain closed on Tuesday, Oct. 1. The beach and tourist attraction had been shut down on Monday, Sept. 30, as the Department of Conservation and Recreation, did not want swimmers and visitors to interfere with the ongoing search.
The missing man was reportedly wearing black swim trunks when he set out with two women around 5:30 p.m. on Sunday evening, intending to swim from the beach across the pond toward the Lincoln side, according to CPD Sgt. Jack Kennedy.
The women, who were reportedly stronger swimmers than the man, altered police when the man had not returned to the shore by 6:45 p.m. on Sunday night, Kennedy said.
Boats from the Concord, Bedford and Lincoln fire departments, along with State Police divers and the Wing have been searching the 100-foot-deep kettle pond on the Concord-Lincoln line on Sunday evening. Boats and divers returned on Monday to no avail.
Situated in a state reservation, Walden Pond is a glacial kettle pond more than 100-feet deep at some points. The pond has also been designated as a National Historical Landmark, a title owed at least in part to the time Henry David Thoreau spend there in the mid-1800s and its prominence in his work.
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