October 30

Hawaii Okinawa Center, 94-587 Ukee St., 2-6 p.m., contact for cost. Learn about how to navigate Medicare and Medicare coverage options for 2019. A salesperson will be present with information and applications, but there is no obligation to enroll. (info@mdxhawaii.com, 748-4060)

First Baptist Church of Pearl City, 1445 Hoolaulea St., Tuesdays through Dec. 11, 9-10:30 a.m., free. This class is a low-impact beginner’s class for seniors. The focus is to provide evidence-based techniques to improve flexibility and balance. (681-1463)

Hawaii Okinawa Center, 94-587 Ukee St., 2-6 p.m., free. Join a free senior fair where Medicare experts, brokers and representatives of insurance companies, and health care professionals will discuss Medicare options and important health care decisions. Reservations recommended. (748-4060)

Hawaii Convention Center, 317AB, 10 a.m.-2 p.m., free. Donate blood and save lives. Pre-registration recommended. (848-4770, bbh.org)

Tony Group Autoplex, Bloodmobile, 8:30 a.m.-2 p.m., free. Donate blood and save lives. Pre-registration recommended. (848-4770, bbh.org)

University of Hawaii at Manoa, Campus Center, Ballroom CC301, 8 a.m.-3 p.m., free. Donate blood and save lives. Pre-registration recommended. (848-4770, bbh.org)

Kaimuki Christian School, 1117 Koko Head Ave., 5:30-6:30 p.m., free. Prospective high school students and their families are invited to come visit Kaimuki Christian School. The event will be an opportunity to talk with teachers, school administrators and students to learn about the school’s dedication to Christianity, the community and curriculum. Light refreshments will be served, and there will be a chance to win movie tickets. (kaimukichristianschool.org)

Pohai Nani, 45-090 Namoku St., 6:30 p.m., free. Enjoy a free magic show the day before Halloween in celebration of National Magic Week. (eventbrite.com/e/4th-annual-hawaii-magic-festival-kickoff-show-tickets-51371000044?ref=enivtefor001&invite=MTUyNTM4ODAvbXJvbWFnaWNAeWFob28uY29tLzA%3D%0A&utm_source=eb_email&utm_medium=email&utm_campaign=inviteformalv2&utm_term=attend&password=ibm185)

Daniel K. Inouye International Airport, Interisland Terminal Conference Room 3, 300 Rodgers Blvd., 9 a.m.-3 p.m., free. Hawaiian Islands Humpback Whale National Marine Sanctuary Advisory Council holds an open meeting to review and revise work plans, address new action items and provide council updates. (hawaiihumpbackwhale.noaa.gov)

Kalihi Uka District Park, 2411 Kalihi St., 6:30-7:30 p.m., free. There will be a costume contest, haunted house and candy giveaway. (832-7807)

Jazz Minds, 1661 Kapiolani Blvd., 7:30-10 p.m., $10. (945-0805)

Hawaii State Art Museum, 250 S. Hotel St., noon-1 p.m., free. Charlton Kupaa Hee will speak about his ceramics work in this lunchtime presentation. (586-0900)

Da Shop: books + curiosities, 6-8:30 p.m., free. Join in for a lively discussion of Sy Montgomery’s book detailing her deep and meaningful experiences with octopuses. Bring a pupu or drinks to share for a potluck-style meal. (dashophnl.com/events)