April 6

American Red Cross, 4155 Diamond Head Rd., full course takes place noon-6:30 p.m. April 6, online blending learning course takes place 8:30-11:30 a.m. April 10, $110. CPR for professional rescuers and healthcare providers. Advanced registration is required. (1-800-733-2767, redcross.org/take-a-class)

American Red Cross, 4155 Diamond Head Rd., April 6 and 25, 8:30 a.m-noon, $70. Learn emergency action steps and first aid procedures for injuries and sudden illnesses. Advanced registration is required. (1-800-733-2767, redcross.org/take-a-class)

Art Explorium, 1-2:30 p.m., $15/student. Simulate ancient tapa making techniques using paper and various artistic approaches. Appropriate for ages 5 and older. Advanced registration is required. (artexplorium.org)

Aloha Stadium, contact for more information. Try solo competitive driving (a.k.a. autocross) at the Hawaii Region, Sports Car Club of America event. (www.sccahawaii.org)

Manoa Valley District Park Pavilion, 8 a.m.-1 p.m., free. Malama Manoa hosts the sixth 1000-Tree Giveaway. This year’s varieties include kukui nut, monkey pod, plumeria, kalo, papaya, mountain apple, monsterra and more. (malamamanoa.org)

Leilehua High School Cafeteria, 7-11 a.m., $7. Wahiawa Lions host its 18th annual fundraiser breakfast with a meal that includes eggs, sausages, steamed rice, banana bread, pineapple chunks and a beverage. Kananai Oliveira Hula Studio provide entertainment. Takeout is available. (621-0852)

University of Hawaii Institute for Astronomy Manoa Headquarters (2680 Woodlawn Dr.), 11 a.m.-4 p.m., free. Featuring activities, displays and talks for people of all ages. (ifa.hawaii.edu/open-house)

Mililani Town Center, 4 p.m., contact for cost. (ronartisfamilyband.com, 371-3895)

Hawaii Polo Club, 68-411 Farrington Hwy., Waialua, 2 p.m. matches start, 11 a.m. gates open, $10/field seating, $25/clubhouse area. Duke Kahanamoku Trophy featuring Wealth Strategy Partners verses Equus. (Hawaii-polo.org, hpsocialclub@gmail.com)

Iolani Palace, 10 a.m.-4 p.m., contact for cost. An all-day benefit concert to raise money for Iolani Palace featuring Mailani, Jerry Santos, Teresa Bright, Weldon Kekauoha, Sean Naauao, Waipuna and Huewa alongside halau from across the islands. (522-0822, iolanipalace.org)

Foster Botanical Garden, performances held at 3, 3:20 and 3:40 p.m., free. Foster Botanical Gardens holds a special living history program: “The Beginning of a Garden.” The performance features costumed role-players portraying three different people from island history instrumental in establishing, creating and preserving Foster Botanical Garden. Advanced registration required. (522-7066)

Diamond Head Theatre, March 30-May 25, contact for days, times and cost. Diamond Head Theatre’s spring session teaches song and dance of musical theatre to learning the dynamics of a scene. Classes are available for children, teens and adults. (diamondheadtheatre.com/classes, 733-0277)

Gallery on the Pali, through May 1, 10 a.m.-6 p.m. Mondays to Fridays, 2-6 p.m. Saturdays and Sundays, free. Featuring photographs by Philippe Gross and Duane Preble, sharing a similar philosophy on art grounded in the celebration of life’s mysteries found in details of ordinary existence. (595-4047)

University of Hawaii Manoa, art gallery, March 9-April 11, Monday-Friday, 10 a.m.-4 p.m, Sunday, noon-4 p.m., free. Beili Liu explores her Chinese roots through a variety of media, such as bamboo and salt. (956-6888)

Leeward Community College Lab Theatre, 1-4 p.m., contact for cost. PlayBuilders of Hawaii holds auditions and interviews for its theatrical ensemble. Those interested must be 16 or older, do not have to be a student at LLC and must be available for rehearsals from 7 to 10 p.m. Mondays beginning April 14. (november.morris@playbuilders.org)

Kaimuki High School Auditorium, 4:30 p.m. April 6 and 7:30 p.m. April 10, free. Farrington High School’s T-Shirt Theatre performs “Untold Stories,” an idea from students’ curiosity about back stories of those they observe. (rehearseforlife.com)