Senior Citizens Fun Walk: Register 7:30 a.m. at Kapiolani Park Bandstand. Costs $6.
Music Break: Festival Band plays jazz, blues and R & B, noon, Tamarind Park.
Hawaii Pacific University: Free financial aid seminar, 12:15 p.m. Call 544-0238.
"The Princess and the Pirates" on stage: Act One Children's Theater presents a musical tale based on the Arabian Nights, 7 p.m., Lanikai Elementary School. Cast includes kids from Lanikai, Le Jardin Academy, Kainalu Elementary and Kailua Intermediate schools; each school will host a performance. Tickets $2. Call 261-0457.
Wahiawa Pineapple Run: 6 a.m. to 1 p.m., Wahiawa District Park.
Clean up Mau`umae Nature Park: Help make the lower park area at the corner of 16th Avenue and Claudine Street more attractive for picnics, hikes and play, 8 to 11 a.m. Bring shoes and tools such as shovels, pitchforks, rakes and wheelbarrows; gloves, water and some tools provided. Sign up at 973-7250.
"How Will Hawaiian Sovereignty Affect Us?": American Friends Service Committee workshop, 8:30 a.m., Richards Street YWCA. Talk story at noon. Costs $3; lunch $5. Register at 988-6266.
Clean up Makiki Stream: Meet at the corner of Makiki and Nehoa streets for a Citizen Action Project, 9 a.m. to noon. Stream is shallow, debris may not be, so bring boots, old athletic shoes or tabi; gloves provided. Call David Hill at 941-4854.
Ikebana exhibition: Two-day floral exhibition in Special Events Room at Liberty House, Ala Moana, opens at 9 a.m. More arrangements decorate a banquet 5:30 p.m. Sunday at the Hawaii Prince Hotel; reserve at 988-2564.
Free pruning class: With Jonel Smith, a supervisor at Wahiawa Botanical Garden, 9:30 a.m., Ho`omaluhia Botanical Garden. Bring work clothes and shoes, bug repellent, rain gear and any hand pruning tools you have. Reserve at 233-7323.
Lyon Arboretum: Hector Wong-Chan's African violets workshop ranges from propagating to repotting to growing hybrids, while Edwin Oka leads a similar workshop on dendrobium orchids, 9:30 to 11:45 a.m. Costs $15.50 plus $6 supply fee for violets, $10 supply fee for orchids. Call 988-7378.
Sesame Street Live sneak preview: 11:30 a.m. and 12:30 p.m., Waikele Center Courtyard.
"Hula Heart" preview: By Honolulu Theatre for Youth, 3 p.m., children's section, Borders, Ward Centre.
Teen Volunteer Fair: "Promoting Volunteerism in Youth" provides information on why, where and how to volunteer, 10 a.m. to 3 p.m., Ala Moana Centerstage. With comedian Augie Tulba, Roslyn Freitas, Justin, B.B. Shawn, the UH Rainbow Dancers and others. Call 595-8400 ext. 206.
Eldercare entrepreneurs: Kapiolani Community College offers a six-week course in how to run a long-term health care business in Hawaii, beginning Monday. Costs $55. Call 734-9211. Five other community colleges will offer the same course; sponsored by the Executive Office on Aging, Office of the Governor.
Hale Koa Hotel concert: Navy Pacific Fleet Big Band Ensemble performs, 4 p.m.
Master class in guitar: With classical guitarist Christopher Parkening, 5:30 to 7 p.m., Orvis Auditorium. Admission $5 general, $3 seniors and students. Call 956-8742. Class participants may have to audition: call 988-3972 by 8 p.m. Saturday.
American Needlepoint Guild: 7 p.m., Academy Art Center. Call 623-1433 evenings.
Recital: By soprano MiSung Bevett, 1:30 p.m., Orvis Auditorium. Free. Call 956-8742.
Recital: By mezzo-soprano Dana Reiss, 8 p.m., Orvis Auditorium. Free. Call 956-8742.
Fashion Wednesday: Featuring new designs from Princess Kaiulani Fashions, 11 a.m. to 2 p.m., Kahala Moon Cafe. Call 732-7777.
Brown Bag Biography: Harriet Gay speaks on "The Three Masks of Colette," noon, Biography Cottage 96-36, 1777 East-West Road. Call 956-3774.
Trombone recital: By Jonathon Kimura, 1:30 p.m., Orvis Auditorium. Free. Call 956-8742.
Barnes & Noble: Investment seminar with Ethan Tweedie from Dean Witter Reynolds, based on Michael O'Higgins' "Beating the Dow," 7:30 p.m., Kahala Mall.
"Pompeii: Window on Roman Society": Illustrated lecture by Robert Littman, professor of classics at the University of Hawaii and author of "The Greek Experiment," 7:30 p.m., Academy Theater. He has participated in excavations in Greece and Israel. Free. Call 532-8700.