TO DO TODAY
— 2 and 7:30 p.m., Goodspeed Opera House, 6 Main St., East Haddam; $29-$75; (860) 873-8668.
— 9:30 a.m., East Lyme Community Center, 41 Society Road; free.
— 10 a.m.-2 p.m., Howard T. Brown Park, 100 Chelsea Harbor Drive.
— 1 p.m., Raymond Library, 832 Raymond Hill Road, Oakdale; free; (860) 848-9943.
— 3-6 p.m., Lawrence + Memorial Hospital, 365 Montauk Ave., New London.
— 6-8 p.m., Spark Makerspace, 225 State St., New London; open to all levels; free for members, $5 nonmembers; (860) 629-8477.
— 4-6 p.m., Public Library of New London, 63 Huntington St.
— 6 p.m., Cragin Memorial Library, 8 Linwood Ave., Colchester; “Book Club” screening; free; 537-5752.
— 6:30 p.m., Otis Library, 261 Main St., Norwich; presentation by civil rights activist Nepram, author of “Working Together to End Gun Violence”; free; (860) 889-2365.
— 7 p.m., Tapped Apple, 37 High St., Westerly; local authors read works commemorating the Sept. 11 terrorist attacks; hosted by Ocean Breeze Press; free.
— 7 p.m., Bill Hall, Connecticut College, New London; coastal conservation panel discussion hosted by the Connecticut College Arboretum and Wild Ones; free; (860) 439-5020.
— 7:30 p.m., Lyme Public Hall, 249 Hartford Road; presentation on organ donation by Richard Jones, with stories from local donors and recipients; free; (860) 526-8886.
— 11 a.m., Bank Square Books, 53 West Main St., Mystic; music and songs with DJ Danny and Friends; free; (860) 536-3795.
— 1 p.m., Groton Public Library, 52 Newtown Road; music program for children with special needs and their caregivers; free; (860) 441-6750.