THIS WEEK
Students clean Maunawili Trail: Students 7th grade and up are invited to clear maile pilau and banana poka from 'ohi'a trees along Maunawili Demonstration Trail, 9 a.m. to noon Saturday. Park at the lookout spot after the first hairpin turn on the Kailua side of the Pali tunnels. Bring sturdy shoes, water to drink and mosquito repellent; tools supplied. Call Youth for Environmental Service at 957-0423 or 254-4260.
Whale Watch Weekend: Sea Life Park offers a weekend workshop and cruise aboard the Navatek, Jan. 18 and 19 and 25 and 26. Costs $35 general, $25 ages 10 to 12. Call 259-6476.
Manoa Trail maintenance: Students 7th grade and up are invited to replant areas, flatten the trail and divert water along Manoa Falls Trail, 9 a.m. to noon Sunday; go into Manoa Valley, past Paradise Park, to the parking lot at the trail head. Bring sturdy shoes, water to drink and mosquito repellent; tools supplied. Call Youth for Environmental Service at 957-0423 or 254-4260.
Sierra Club Trail Clearing: Help improve this trail from the 1930s, Jan. 19 Free. Call 538-6616.
Makapuu Family Hike: Hike the old coast guard road to the lighthouse. For kids 5 and over accompanied by an adult. Jan. 19. Costs $1 children, $3 adults. Call 538-6616.
COMING UP
Miconia Removal: Help the Sierra Club remove this invasive plant from upper Manoa Valley or Kalihi Uka. Jan. 25. Free. Call 538-6616.
Ala Wai Boat Harbor Cleanup: Join the Sierra Club in cleaning the harbor and encouraging the return of sealife. Feb. 1. Free. Call 538-6616.
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 www.h-3run.com or www.fhb.com or call 521-4351.
CONTINUING
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. 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).
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.