THIS WEEK

Honolulu Zoo by Moonlight: See what animals do at night, 6:30-8:30 p.m. July 17-18 and 20-21. Cost: $5 children; $7 adults. Tickets available in advance at the zoo's box office. Information, 971-7176.

Hawaiian Trail and Mountain Club: Five-mile, intermediate hike to Wa'ahila-Kolowalu, 9 a.m. July 19; and 12-mile Aiea Ridge, advanced hike, July 20. Meet at 8 a.m., Iolani Palace, mountain side for both hikes. Children under 18 must be accompanied by an adult. Bring lunch and water, and wear good shoes and appropriate clothing. Cost: $2. Call 422-7830 for the July 19 hike; and 488-4419 for the July 20 hike.

Konahuanui Trail Maintenance, July 20. Meet at 8 a.m., Iolani Palace, mountain side.

"Just Japan" slide show by Joyce Tomlinson, 7:30 p.m. July 19, clubhouse. Bring sushi or senbei or pay $1 at-the-door.

Ho'omaluhia Botanical Garden: Explore the garden at night, 6:30-9 p.m. July 18-19. Bring walking shoes, bug repellent, rain gear and a flashlight. Garden gate opens at 5:30 p.m. for those who want to picnic. Free. Reservations: 233-7323.

In-line skate lessons: "The Skill Builder," 5:30-7:30 p.m. July 18, University of Hawaii. Register at 956-6468.

"How Not To Crash Course," 5:30-7:30 p.m. Wednesdays until July 23, University of Hawaii, call 956-6468; and 6-8 p.m. Tuesdays, through July 29, YWCA, 538-7061.

"Skate Fitness and Workout Program," 5:30-7:30 p.m. July 17 and 24, University of Hawaii. Call 956-6468.

Students must be 16-years-old or older for UH classes and 6-years-old or older for the YWCA class. Skates and protective gear provided. Fee.

Full moon hikes: National Sierra Club member recruitment will be held during a hike at Makapu'u, July 19. Cost: $1-$3. Call 538-6616.

Also, annual Koko Crater Botanical Garden moonlight walk, July 19. Potluck dinner begins at 6 p.m., walk to follow. Bring a flashlight. Information, 522-7063.

Restoration project: Herb Lee Jr. leads the restoration of an ancient Hawaiian fish pond, July 19, Waikalualoko Fish Pond, Kaneohe. Carpool, 8:30 a.m., Punchbowl side of the State Library on King Street; or meet at the pond at 9 a.m. Be prepared to get wet. Wear fishing tabis. Donation: $2 per person. Reservations, 247-0104.

"Skatin' Safari": Second Annual In-line Skating Event, 4-7 p.m. July 19, Aug. 23 and Sept. 27, Honolulu Zoo. Skating instruction, 5-6 p.m. Participants must wear full safety gear and children under 12 must be accompanied by a "skating" adult. Limited supply of skates and safety gear available for rental with a picture ID. Pre-registration: $5, one day; $8 two days; and $10, three days. Same-day registration: $10. Information, 948-6848.

Hawaii Nature Center: Three-mile Kahala to Natatorium Beach walk with Annette Hee, July 20. Cost: $7. Reservations required. Call 955-0100.

Weekend fishing: Nuuanu Reservoir Number 4 open for weekend fishing by anglers with a valid State of Hawaii Freshwater Game Fishing License and Entry Fishing Card beginning Aug. 16. Applications available at the Department of Land and Natural Resources, 1151 Punchbowl St. Deadline: 4 p.m. July 25. Drawings will be held to assign fishing dates and times. Information, 587-0100.

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CONTINUING

"Learn-to-Live": Adult swimming classes, 5:15 to 6 p.m., Mondays, Wednesday and Thursdays through Aug. 21, Ala Moana Beach Park, Lifeguard Stand 1E. Free.

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, 1-5 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.

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