Kaimuki Library: Storytime for ages 3 to 5 at 10:30 a.m. Thursdays. Call 733-8422.
Zoo by Moonlight: Join the nightlife at the Honolulu Zoo, 7 to 9 p.m. Thursday, Friday and Saturday. Costs $6 adults, $4 children. Call 971-7174.
May Day Pageant: Children of Star of the Sea Early Learning Center present a Lei Day program, 10 a.m. at Star of the Sea Church. Call 734-3840.
"The Princess and the Pirates": Act One Children's Theater presents a musical based on the Arabian Nights stories, 7 p.m. Friday, Kainalu Elementary. Cast from Le Jardin, Lanikai Elementary, Kainalu Elementary and Kailua Intermediate schools. Tickets are $2. For reservations, call 261-0457. Final performance will be at Kailua Intermediate 7 p.m. Saturday.
Day Reef Walks: Explore the shore and reef with the Waikiki Aquarium. Costs $8 adults, $7 children. Register by mail. Call 923-9741.
Safe Keiki Day: Kaimuki High School presents a health and wellness fair 10 a.m. to 2 p.m.,Magic Island, Ala Moana Beach Park. Ambulance tours, fire truck display, bicycling and in-line skating demonstrations. Free. Call 586-5940.
Kalihi-Palama Library: Listen to stories and make a frame for a wallet-sized photo during National Photography Month, 10 a.m. Call 832-3466.
Mothers in the Wilderness: Learn what mothers do for their young in nature, 1 to 3 p.m., Hawai'i Nature Center. Maui. For ages 3 to 6. Costs $5. Call 244-6500, Maui.
Expression Session: Children 5 to 12 exercise their artistic ability while their parents tour the Contemporary Museum, 1:30 to 3 p.m. Costs $10. Reserve at 526-1322.
"Hula Heart": A young boy from Hawaii must cope with life in California in Honolulu Theatre for Youth's play. 4:30 and 6:30 p.m. at McCoy Pavilion, Ala Moana Park. Final performance at 4:30 p.m. May 11. Tickets are $9 general, $7.50 ages 13 to 18, $5 children and seniors. Call 839-9885.
Be Kind to Animals Week: Games, displays, arts and crafts and animals, 9 a.m. to 4 p.m. at Bishop Museum. With the Hawaiian Humane Society,Sea Life Park, Waimea Falls Park and Aloha Land Petting Zoo. Free admission. Call 946-2187 ext. 219.
Cold, Wet and Scaly: Enter the world of the reptiles, 9:30 to 11:30 a.m. , Hawai'i Nature Center. Costs $5. Call 955-0100.
Sesame Street Live: The gang returns in "Let's Play School," 7 p.m. May 1, Blaisdell Arena. Tickets $10.50, $12.50, $15.50, at box office or the Connection. Call 521-2911.
Repeats 7 p.m. May 2; 10:30 a.m. and 7 p.m. May 3; 10:30 a.m. and 2 p.m. May 4; and 1 and 4:30 p.m. May 5.
Pearl City Library: Children's Puzzle Time begins 10 a.m. Mondays, May 6 through June 3. For toddlers and preschoolers. Call 453-6566.