TO DO TODAY

— 9:15 a.m., Mystic Congregational Church, 43 East Main St., Mystic; tea, followed by a 10 a.m. carpool to Horses Healing Humans in Stonington for a tour and overview of their therapy programs; free; (860) 536-4259.

— 9:30 a.m., Lyme Firehouse, 213 Hamburg Road; Mark Seth Lender presents “Building Noah’s Ark: Life on Earth (and what we can do to save it)”; free and open to the public; (860) 434-5888.

— 3-6 p.m., Washington Park, Meridian St., Groton; through Oct. 31; newlondonfieldofgreens.org.

— 7 p.m., Public Library of New London, 63 Huntington St., New London; presentation by New London historian Sally Ryan on railroads and the Industrial Revolution; free; (860) 447-1411.

— 10 a.m., East Lyme Public Library, 39 Society Road; free; (860) 739-6926.

— 10 a.m., Groton Public Library, 52 Newtown Road; storytime for ages 2 and 3 with caregivers; free; limited seating; (860) 441-6750.

— 10:30 a.m., Wheeler Library, 101 Main St., North Stonington; songs, stories and more for infants through age 5 with a caregiver; free; (860) 535-0383.

— 10:30 a.m., Stonington Free Library, 20 High St.; songs and stories for infants through age 2 with a caregiver; free; (860) 535-0658.

— 11 a.m., Public Library of New London, 63 Huntington St., New London; stories and songs in English and Spanish for infants through age 6; free; (860) 447-1411.

— 11:45 a.m., Stonington Free Library, 20 High St., Stonington; free; (860) 535-0658.

— 1:30 p.m., Groton Public Library, 52 Newtown Road; books with the theme of friendship for homeschool teens and families; free; (860) 441-6750.

— 1:30-3 p.m., Groton Public Library, 52 Newtown Road, Groton; free; (860) 441-6750.

— 3:30 p.m., Cragin Memorial Library, 8 Linwood Ave., Colchester; apple dipping class for grades 6-12; free; (860) 537-5752.

— 6 p.m., Bank Square Books, 53 West Main St., Mystic; Patrina Dixon talks about her book on budgeting for teens; part of the Building Financial Success series; free; (860) 536-3795.