Urban Garden Center: How to get maximum yields from plants and how to get poinsettias to bloom in December, 9 a.m. to noon Aug. 3, 962 Second St., Pearl City. Call 453-6050.
Bowman hike: Ridge hike above Kalihi Valley with Arnold Fujioka of the Hawaiian Trail and Mountain Club, 8 a.m. Aug. 4. Twelve miles. Costs $2. Call 531-8477.
African and Caribbean dance classes: Halifu Osumare leads workshops Aug. 4 through 10 at UH-Manoa. First workshop is 4 to 5:30 p.m. Aug. 4 and 7:30 to 9 p.m. Aug. 10; $10 per class or $18 for both, at Studio 3 in the Athletic Complex. Call 956-0438, Big Island, or 988-6723.
Osumare also teaches Katherine Dunham technique with Haitian dance 1 to 2:30 p.m. daily, Aug. 5 through 9; costs $54. The last workshop, in Haitian and Trinidadian dance, is 6:30 to 8 p.m. Aug. 5, 7 and 9; costs $51. Register for the second or third workshop at 956-8244.
Casino gaming class: Two lessons, 6:30 to 9 p.m. Aug. 6 and 7, Moiliili Community Center. Costs $22. Call 955-1555.
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.
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.
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.
Philippine folk dancing: 2:30 to 4:30 p.m. Saturdays, Lanakila Gym. Free. Call 455-9963.
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).
Hawaii Israeli Recreational Dance: Noon to 3 p.m. Sundays, Ala Wai Ballroom. Costs $3.50. Call 623-3603.
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.
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.
International folk dancing: Includes Bulgarian, Greek, Rumanian and Israeli dances, 7 to 9:15 p.m. Sundays, Makiki District Park. Donation. Call 923-0362.
Line dancing: 9:30 to 11 a.m. Tuesdays, Waikiki Community Center. Costs $3. Call 923-1802.
Scandinavian dancing: 7 to 9 p.m. Wednesdays, Ala Wai Golf Course Clubhouse. Free. Call 922-0793 or 955-2577.
Pali Twirlers square dance: 7:30 to 9:30 p.m. Thursdays, Yacht Club Terrace. Call 254-2333.
Honolulu Zoo: The 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.