THIS WEEK

"Swamp Romp": The marines and sailors of Combat Services Support Group challenge businesses, organizations and other military bases in a five-mile run and obstacle course, 7:30 a.m. April 26, Kaneohe Marine Corps Base. Cost: $72-$90 per team if registering by April 18. Teams registering after April 18 will be charged an additional $15. All competitors will receive a T-shirt. Competitors must wear utility/long trousers or sweat pants and some type of boots. No spandex or tennis/running shoes allowed. Awards will be given. Pick up packets from 8 a.m. to 4 p.m. April 23-25. Entry forms available at 254-7596 or 254-7591.

"Art of Taiko": Kenny Endo demonstrates, 9 a.m. April 19, Aina Haina Public Library. Call 373-4898.

Hanauma Bay: Jean Carr will explain the geology and history of the bay and Jack Oerlein will share legends of the sea during Hawaii Audobon Society's walking tour, 9 a.m. April 19. Meet at the overlook near the stairway to the bay. Carpool available at 8 a.m. by the State Library, mauka of King St. Donation: $2. Reservations at 247-0104.

Mother Goose: Le Jardin Academy hosts Mother Goose and Brothers Grimm Games Day, 9 to 11 a.m. April 18. Games will be based on fairy tales, including "Three Little Kittens," "Jack and the Beanstalk," "Old Mother Hubbard," "Humpty Dumpty," "Little Bo Peep" and "Jack Be Nimble." Refreshments. Information at 261-0707.

Lyon Arboretum hike: Ka'ena Point nature walk, 9:30 a.m. to 3 p.m. April 19. Meet at 9:30 a.m. by the restrooms on Yokohama Beach on Oahu's west coast. Intermediate hikers. Bring binoculars, lunch, water, sun screen and good walking shoes. Costs $12. Register at 988-7378.

Hawaii Nature Center: Dr. Mark Merlin, author of Hawaiian Forest Plants, will lead a moderate, 3-mile hike, April 19. Cost: $7. Reservations required. Call 955-0100.

East Makapu'u hike, April 20. This moderate, 4-mile hike is only for people 12-years and older. Cost: $7. Reservations required. Call 955-0100.

Uncle Norman Ching teaches the art of palm frond basket weaving, 1:30 to 4:30 p.m. April 20. Cost: $7. Reservations required. Call 955-0100.

Taiko Center of the Pacific: Taiko classes begin April 20. Classes consist of three to seven week sessions. Register at 734-9211.

Sierra Club: Earth Day stream clean up and storm drain stenciling, 9 a.m. April 20. Meet in the parking lot at 47-528 Kam Highway, next to the Hygenic Store. Wear sturdy shoes with gripping soles and work clothes. Bring a hat, water, sunscreen and raingear. Information at 538-6616.

"Our Bodies Don't Lie": Professional Women's Network luncheon, 11:30 a.m. to 1:30 p.m. April 21, Hale Koa Hotel, DeRussy Hall, second floor. Guest speaker is Nancy Link. Cost: $20. Reservations at 533-4800 before noon, April 18.

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COMING UP

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.

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 http://www.h-3run.com or http://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.