TO DO TODAY

Boogie Wonderland — 7 p.m., Ivoryton Playhouse, 103 Main St.; 70s musical cabaret featuring Ivoryton cast members and alums; $25, $20 students; (860) 767-7318.

The Proven Ones — 6 p.m., Mystic River Park, Cottrell Street, Mystic; with Kid Ramos.

Mahjong Group — 12:30 p.m., Salem Free Public Library, 264 Hartford Road; free; (860) 859-1130.

Apollo 11 Moon Landing Webcast — 3:45 p.m., Raymond Library, 832 Raymond Hill Road, Oakdale; live webcast of the guided recreation of the Apollo 11 journey in celebration of its 50th anniversary; free; (860) 848-9943.

Apollo 11 Moon Landing Webcast — 4 p.m., Groton Public Library, 52 Newtown Road; live webcast of the guided recreation of the Apollo 11 journey in celebration of its 50th anniversary; free; (860) 441-6750.

Christian Meditation — 5:15 p.m., Harkness Chapel, Connecticut College, 270 Mohegan Ave., New London; free; (860) 625-0294.

Usual Suspects Mystery Book Club — 5:30 p.m., Public Library of New London, 63 Huntington St.; “The Crossing Places” by Elly Griffiths; free; (860) 447-1411.

Voices at the Square Open Mic — 6-7:30 p.m., Bank Square Books, 53 West Main St., Mystic; for performers of all ages; free; (860) 536-3795. Connecticut Authors and Publishers Association — 6:30 p.m., call for location; meeting and presentation by Brian Jud on marketing books to non-bookstore sellers; free; (860) 442-4237.

Miss Rebecca’s Storytime — 10 a.m., East Lyme Public Library, 39 Society Road; for all ages; free; (860) 7396926.

Babies and Books — 10 a.m., Groton Public Library, 52 Newtown Road; for infants through 24 months with a caregiver; free; limited seating; (860) 441-6750.

Mother Goose and More — 10:30 a.m., Otis Library, 261 Main St., Norwich; for infants through 23 months; free; (860) 889-2365.

Summertime Rocket Time Storytime — 10:30 a.m., Bill Memorial Library, 240 Monument St., Groton; for all ages with an adult; free; (860) 4450392.

Read with Oliver — 10:30 a.m., Preston Public Library, 389 Route 2; outdoor reading and visit with Oliver, a therapy miniature donkey; for all ages; free; (860) 886-1010.

Maker Mondays — 1:30 p.m., Otis Library, 261 Main St., Norwich; virtual reality workshop for ages 10 and up; hosted by the Rhode Island Computer Museum; free; (860) 889-2365.

Far-Out Films — 2 p.m., Groton Public Library, 52 Newtown Road; screening of “Earth to Echo”; for all ages; free; (860) 441-6750.