Taste the cool science at the New Waves at NELHA Luncheon and Tour, a learning and tasting day at the Natural Energy Labs of Hawai'i Authority 10 a.m. to 2:30 p.m. Friday at the innovative aquaculture and natural energy facility on the Kona Coast. Guests will tour aquaculture operations and eat lunch prepared by local chefs featuring fresh NELHA seafood products, an ocean vodka "luge," plus other culinary treats. $100. 808-329-8073, www.keaholepoint.org.

KONA COFFEE FEST, MORE: Outrigger Keauhou Beach Resort hosts three days of java-laced dining and art and an international cupping competition as part of the 2007 Kona Coffee Cultural Festival. The sixth annual Kona Coffee Culinary Invitational has Island chefs "brewing" up a range of dishes, all featuring Kona coffee; 6:30 to 8:30 p.m. Nov. 8 at the resort, plus entertainment, wine and beer samplings. $40 in advance, $45 at door; 808-324-2554. For other festival events at the resort: www.konacoffeefest.com, 808-326-7820. For reservations or information: 800-688-7444, www.outrigger.com or e-mail reservations@outrigger.com.

HILO IN BLACK AND WHITE: Downtown Hilo puts on a strolling party Friday with Black & White Night, featuring live jazz, a treasure hunt through town, stores open late with specials, food samples, author and artist receptions. Everyone dresses in black and white, some in shorts and T-shirts, others in gowns and suits to enter the best-dressed contest for cash prizes. Free. 808-933-9772 or amoon@bigisland.com.