July 20

Crystal Cave & Kyanite Lounge, 10 a.m.-noon, $30. Call for appointment. (308-8328)

Na Kupuna Makamae Center, 6-7 p.m., $10-$8. Taught by kumu Aukai Reynolds. (773-7047)

Island Bungalow Hawaii, 5-7 p.m., call for cost. Learn the art of all-natural indigo dyeing and dye your own 22-inch cotton pillow sham. (536-4543)

Pearl City Public Library, 8:30-10:30 a.m., free. Learn marketing strategies and practical tips for small businesses to survive the impacts of long-term construction projects. (biahawaii.org/events/details/rural-business-rail-assistance-rbra-learning-session-885488)

Hanauma Bay Nature Preserve theater, 6:30-7:30 p.m., free. Ariel Jacobs talks, “The ahi on your plate: management of domestic longline fisheries in the Pacific Islands.” (397-5840)

Pearl City Hongwanji Mission, 858 2nd St., 7-9 p.m., free. Rev. Sonam Wangdi Bhutia, head priest of Kathmandu Hongwanji in Nepal, discusses how the story of the Buddha continues to resonate today with young adults. (455-1680)

Kailua Town Center, 3-7 p.m., free. Donate blood and save lives. Pre-registration recommended. (848-4770, bbh.org)

Habitant Lounge at Nordstrom, 5:30-7:30 p.m., free. (953-6100)

Blue Note Hawaii, July 20-22, 6:30 and 9 p.m., $35-$25. (bluenotehawaii.com)

Foster Botanical Garden, 4:30-7 p.m., free. Take a stroll through the garden and enjoy a concert from Sam and the Sumo Ninjaz. (522-7066)

Blaisdell Exhibition Hall, 7 p.m., $25. The sixth annual Goodwill Goes GLAM! Fashion Show presents styles curated by Kaypee Soh. Attendees then get first access to more than 40,000 items at the used clothing sale. (higoodwill.org/glam)

Hawaii State Library, Language, Literature and History Section, 6:30 p.m., free. Discuss “A Tale for the Time Being” by Ruth Ozeki. (librarieshawaii.org/event/hawaii-state-library-book-group-a-tale-for-the-time-being-by-ruth-ozeki/)

Ala Moana Center, 5 p.m., free. (alamoanacenter.com)

Waimea Valley main lawn, 7:15 p.m., free. Watch a screening of a keiki-friendly film. (waimeavalley.net)