THIS WEEK

Hawaii Loa hike: Moderate hike with Ron Fenstemacher does get steep and muddy, 8:30 a.m. to 3 p.m. March 29. Costs $9. Call Lyon Arboretum at 988-7378.

Lyon Arboretum hike: Ray Baker gives a guided tour of favorite valleys and ridges, pointing out early plantings, 9:30 a.m. to 12:30 p.m. March 29. Mosquito repellent recommended. Costs $9. Register at 988-7378.

Box Car Racing: Driving skill competition race, 9 a.m. to 3 p.m. March 29, North end of Paiwa Road in Waikele. Youths of all ages welcomed. There will be three age groups. Box cars must conform to the American Box Car Racing International car specifications. Call 947-3393.

cal,12p COMING UP Art classes: Weekly pencil, acrylic and oil painting classes with Patrick Ching begins April 5, Naturally Hawaiian Gallery, 41-1025 Kalanianaole Highway in Waimanalo. Limited enrollment. Register at 259-5354.

Fishing Tournament: Entries for the Sixth Annual Ulua Fishing Tournament sponsored by Kimura of Hawaii will be accepted until March 29. The tournament will be held from noon April 4 to noon April 6. Proceeds will go to the Catholic Charities' community services and programs. Prizes range from $200 to $1,000 provided there are 100 entries. Cost: $45 adults, $5 children. Call 537-6321.

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.