THIS WEEK

Bon dance: Iwakuni Club practice, 7 to 9 p.m. April 25, Palolo Temple, 1641 Palolo Ave. Call 956-4678.

Lei contest: Market City Shopping Center's Seniors' lei contest, April 26. Leis made by people ages 50 and over will be on display from 10 a.m. to 2 p.m. for public judging. Prizes awarded to top three leis. Leis may be made with any type of flowers. Contestants must drop off leis by 9:45 a.m. in the lobby next to Blockbuster and Burger King.

Box Car Race: American Box Car Racing International event, April 26, Waikele. Cars must meet the American Box Car Racing International's specifications. Call 947-3393.

Lyon Arboretum hike: Ray Baker will guide hikers to the upper reaches of the arboretum. Wear normal hiking attire. Bring bug spray, rainwear, water, snack or lunch. Meet in the arboretum parking lot, 9:30 a.m. April 26. Cost: $9. Limited enrollment. Reservations at 988-7378.

Sunday Snoop: A sneak peek at some of Waikiki's top hotel suites, 10 a.m. to 4 p.m. April 27. Cost: $20 (in advance); $25 (day of the event). Information at 396-5106.

Earth Day celebration: 9:30 to 11:30 a.m. April 27, Hawaii Nature Center. Cost: $7. Reservations required. Call 955-0100.

Halawa Ridge hike: Inger Lidman leads a strenuous 7 to 10 mile hike for experienced hikers only on April 27. Hike may last up to nine hours. Cost: $7. Reservations required. Call 955-0100.

"Mozart, Movies and the Mouse!": Kona Chamber Orchestra concert, 2 p.m. April 27, Kilauea Theater, Big Island. Cost: $10-$8. Call 1-808-967-8222.

Volcano Lore: John Dvorak teaches about the myths, legends, misadventures and current science of active volcanoes, 6:30 to 8:30 p.m. April 28, Kilauea Theater, Big Island. Cost: $40. Call 1-808-967-8222.

In-line skate classes: Two-hour, four-week "How Not To...Crash Course," 5:30 p.m. May 1, 8, 15 and 22, University of Hawaii. Skates and protective gear provided. Cost: $85. Students must be 16-years-old and older. Register at 956-6468.

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COMING UP

Great Trans Ko'olau Trek: Prizes totaling $100,000 reward fast folks in the 10-mile foot race May 11 on the H-3 freeway. To sponsor the Trek, call Bozell Marketing at 955-4416. For an entry booklet, visit the Web site at www.h-3run.com or www.fhb.com or call 521-4351. Entry fee: $80.

To receive an entry form that donates $5 of the fee to the Aloha United Way, call 536-1951.

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CONTINUING

Tai Chi Chuan: Chinese art reducing anger and stress, and increasing softness and flexibility, 4:30 to 5:30 p.m. Mondays and Thursdays in Kekela Gym, Queen's Medical Center. Cost: $35. Register at 547-4780. For other classes, visit the center's Web site at http://www.queens.org.

Honolulu Marathon Clinic: Weekly jogging program with Dr. Jack Scaff Jr., 7:30 a.m. Sundays, Kapiolani Park Bandstand. James Honke leads a 6:30 a.m. program Sundays, Wahiawa Recreation Center.

Taiko classes: The Taiko Center of the Pacific offers classes through Kapiolani Community College. Call 737-7236.

Hawaii In-Line Skating Association: Workouts 5:30 p.m. weekdays at Kakaako Park. Call 988-5299.

Free hike to Diamond Head: Meet the Clean Air Team at the Honolulu Zoo entrance, 9 a.m. Saturdays. Three miles to the top. Call 948-3299.

Honolulu Community Drum Circle: Drummers, percussionists and dancers gather, 1 to 5 p.m. Saturdays, Keehi Lagoon Park. Potluck. Call 377-DRUM (377-3786) to confirm location each week.

Hash House Harriers: Social runs with Aloha group 3 p.m. Saturdays; call 948-AHHH (948-2444). Or Honolulu group 5:30 p.m. Tuesdays; call 948-HASH (948-4274).

Honolulu Marathon Clinic: Free training runs with Jack Scaff and staff, 7:30 a.m. Sundays, Kapiolani Park Bandstand. Call Norm at 247-4957. No meetings on three-day weekends.

Night reef walk: Waikiki Aquarium staff talk about ocean creatures and their habitat on a tour of the reef, April. Costs $8 adults, $7 children. Register by mail. Call 923-9741.

Sports Acrobatics Hawaii: Hawaii Highflyers Trampoline Club for adults and kids, 4 and 5 p.m. Mondays and Wednesdays, McCully Recreation Center. Call Karl Vorwerk at 949-3747.

Waikiki Acrobatic Troupe meets 4 p.m. Sundays at the beach across Kapiolani Park Bandstand; free workout at UH Studio Four 8 p.m. Wednesdays. Call Don Heafner at 536-7205.

Ikebana classes: Lillian Koide teaches flower arrangement 9 a.m. to noon Wednesdays at the Japanese Cultural Center. Tuition $30 per month plus supplies. Call 537-5765, evenings.

Honolulu Zoo: Zoo opens at 8 a.m. on the first and third Wednesdays of the month. General admission $6; $2 with Yum Yum Tree senior card. First Wednesdays feature a botanical tour at 8:45 a.m. for $2 more. Third Wednesdays, tai chi practice begins 8 a.m. Call 971-7174.

Nature Conservancy hikes: Two guided hikes a month to Honouliuli Preserve, home to more than 45 rare native plants and animals. Donation. Call 537-4508.