Parent/Keiki Night at the opera: A parent may bring one or more children ages 6 through 17 to see "The Daughter of the Regiment" for $5 per person, 7 p.m., Blaisdell Concert Hall. Tickets will be available that day from 5 p.m. at the Hall's lanai office (no advance sales). Call Erik or Stephanie at 596-7372.
East Honolulu Community Children's Council: Discussion on the Felix vs. Waihee consent decree and implementation plan, with Dr. Ivor Groves, 7 to 9 p.m., Kaimuki Intermediate School library. Call 733-4400 or 733-9850.
Orchid Society of Manoa: Clifford Mito discusses honohono orchids, 7:30 p.m., Manoa Valley District Park.
Family Sing-Along Concert: Free entertainment for children ages 2 through 8 and their families, 3:30 to 6:30 p.m., Kapiolani Park Bandstand. Presented by the Hawaii Association for the Education of Young Children. Call 942-4708.
Music Break: Nueva Vida Big Thang plays jazz and R&B, noon, Tamarind Park.
"Overcome Your Fear of Water": Free class on dry land for adults, led by Transpersonal Swimming Institute, 7 p.m., Bojac Aquatic Center. Call 800-723-7946.
AIME: Learn Arabic calligraphy and bring a dish for the potluck dinner, 5 p.m., Paki Hale. Call 395-5329.
Winners' Concert: Recipients of the 1996 Morning Music Club scholarships perform, 7:30 p.m., Thayer Piano Company. Free. Donations accepted for scholarship fund.
Hawaii's history through hula: Kumu hula (teacher) Keone Nunes examines the meaning in Hawaiian storytelling, chant and dance and shares the ancient hula and martial art, 7:30 to 9 p.m., Waikiki Heritage Theater. Costs $8. Reserve with Honolulu Timewalks at 943-0371.
Kahala Mall: Gymboree Sing-Along for children, 11 a.m. to 2 p.m., Center Stage. Jimbo, the Magic Clown, entertains at 3 p.m.
Hale Koa Hotel concert: The 25th Infantry Division (Light) Chorus performs, 4 p.m.
"Introduction to the Internet": Hawaii Online offers a free seminar on how to access the Internet and use e-mail and other tools, 7 p.m. Mondays in April, Borders, Ward Centre. Call 591-8995.
Hawaiian Botanical Society: Tim Motley from the University of Hawaii describes "A Botanical Excursion through the Vava`u Island Group of the Kingdom of Tonga," 7:30 p.m., UH-Manoa's St. John Hall, Room 11. Call 956-3938.