Advanced skating: The Hawaii In-Line Skating Association has a skill-building class for skaters, 5:30 to 7:30 p.m. Friday and Dec. 13. Costs $40. Call 48-SKATE (487-5283).
Card and Comic Show: 9 a.m. to 5 p.m. Saturday and Sunday, Dole Cannery. Call 531-2886.
Navy ship open house: Tour the USS Reuben James, a Perry class guided-missile frigate, 1 to 4 p.m. Saturday and 10 a.m. to 4 p.m. Sunday, Pier 9, Aloha Tower Marketplace. Call 528-5700.
Kealia Trail hike: See native trees in dry and moist habitats in the south Waianae range, with Steve Montgomery, Saturday. Five miles, five hours. Costs $7. Call the Hawaii Nature Center at 955-0100.
Bird Walk: Sheila Conant gives a presentation on Hawaiian birds then leads a walk through Lyon Arboretum, 8:30 to 11:30 a.m. Saturday. Wear hiking attire and bring bug repellent, rain gear, water and food. Costs $9. Register at 988-7378.
Urban Garden Center: Self-guided tours, answers to home-gardening questions and advice on shopping for poinsettias, 9 a.m. to noon Saturday, 962 Second St., Pearl City. Call 453-6050.
Birding for Beginners: Learn how to observe and identify birds at a Hawaii
Audubon Society workshop, 2 to 4 p.m. Saturday and Dec. 14. Costs $4. To register, call Lynnea Overholt at 528-1432 and use Voice Mail Box 4.
Great Trans Koolau Trek: Prizes totaling $100,000 reward fast folks in the 10-mile foot race on May 11. To sponsor the Trek, call Bozell Marketing at 955-4416. For an entry booklet, visit the website at http://www.h-3run.com or http://www.fhb.com or call 521-4351. Early entry deadline, with registration fees of $39 for Hawaii residents and $44 for visitors, is Dec. 31.
Learn to swim: Children practice Saturday mornings at Ala Moana Beach; adults, Monday, Wednesday and Thursday evenings. Free. Call the American Red Cross, 734-2101 ext. 123 or 124.
These recreational activities are offered every week,
except during holidays:
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. Call 377-DRUM (377-3786).
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 Preserve, home to more than 45 rare native plants and animals. Donation. Call 537-4508.