Massachusetts State Police and other emergency personnel have searched a second day for a swimmer last seen after he told his wife he might try to swim across the length of Walden Pond.
Authorities say the 63-year-old Lincoln man was reported missing about 6:45 p.m. Sunday.
State police, officers from the Department of Conservation and Recreation and local police and fire departments searched for him for about three hours Sunday and six hours on Monday.
State police said the search will resume on Tuesday.
The state park will be closed to the public during the search.
Walden Pond was made famous by philosopher and poet Henry David Thoreau who lived on the pond's northern shore for two years beginning in the summer of 1845 and wrote about his experience.
This article was originally published on September 30, 2013.
This program aired on September 30, 2013. The audio for this program is not available.