Kumaipo Trail hike: See great views, native birds and cloud forests with scientist Steve Montgomery, Saturday. Six miles, seven hours. Costs $7. Call the Hawai‘i Nature Center at 955-0100.
Pali Falls hike: Pleasant four miles in Nuuanu with Dick Davis of the Hawaiian Trail & Mountain Club, 9 a.m. Saturday. Costs $2. Call 247-3922.
Hawaii Audubon Society: Mary Gaber leads a field trip in search of the Hawaiian coot and other birds, 9 a.m. Saturday, Ho‘omaluhia Botanical Garden, Kaneohe. Bring lunch, good shoes, bug repellent and sunscreen. Sign up at 247-0104.
Breaking the Barriers: Hawaii Parkinson Association has a 5K run/walk fund-raiser, 7 a.m. Sunday at Kapiolani Park. Warm up at 6:30 a.m. Registration costs $18 general, $10 children. Call 528-0935.
Keiki Fun Run: Children can run to raise funds for the American Cancer
Society, Sunday on the Mall-Level parking deck at Ala Moana Center. The Fun Run, for ages 6 to 13, begins at 7 a.m.; the Dash, for ages 4 and 5, starts 7:30 a.m. Runners must pay an entry fee of $15 or collect $25 or more in pledges. Call 595-7544.
Halawa Ridge hike: Mike Mottl of the Hawaiian Trail & Mountain Club leads the way along a trail built in the 1930s to the Koolau summit, 8 a.m. Sunday. Fourteen miles. Costs $2. Call 254-6360.
Great Trans Ko‘olau 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.
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.