Chinatown walking tours: Hawaii Heritage Center offers a historic and cultural tour 9:30 a.m. to noon Fridays. Costs $4. Call 521-2749. Chinatown Historical Society tours are 10 a.m. Mondays through Fridays. Costs $5. Call 521-3045. Chinese Chamber of Commerce of Hawaii tours are 9:30 a.m. to noon Tuesdays. Costs $5. Call 533-3181.
Foster Botanical Garden: 1 p.m. weekdays. Costs $5. Call 522-7066.
Ho`omaluhia Botanical Garden: Rain forest plants, 10 a.m. Saturdays and 1 p.m. Sundays. Free. Bring walking shoes, bug repellent, rain gear and a picnic. Call 233-7323 for reservations.
Halawa Xeriscape Garden: See dryland plants at Halawa Industrial Park. Free admission 10 a.m. to 2 p.m. Saturdays and Wednesdays. Guided tours are free on Thursdays and the last Saturday of each month at 9, 10 and 11 a.m. and 1 p.m.; call 527-6113 for an appointment.
Hawaii Ghost Tours: See haunted spots on a three-hour bus tour 6:30 p.m. Saturdays. Narrated tour includes stops at cemeteries, hotels, an ancient temple, the Royal Mausoleum and the Pali Lookout. Costs $25. Call 396-3438.
Hawaiian Railway: Historical train rides, 1 and 3 p.m. Sundays, 91-1001
Renton Road, Ewa. Costs $8 general, $5 children and seniors. Call 681-5461.
Urban Garden Center: 9 a.m. to noon Tuesdays, 962 Second St., Pearl City. Call 453-6050. Educational center for home gardeners is also open the first Saturday of each month.
Women's history tour: Walk through the capitol district and hear the stories of the women of Hawaii, Friday. Costs $7 general; $6 kama`aina, military and seniors; $4 college students; $3 youths. Includes a tour of Mission Houses Museum. Call 531-0481.
Hawaiian Heritage Plant Walk: Free tour, 9:30 to 11:30 a.m. Saturday, Ho`omaluhia Botanical Garden, Kaneohe. Bring walking shoes, rain gear, bug repellent and a picnic. Reserve at 233-7323.
Waialua walking tour: Explore a sugar plantation with Stephanie Fitzpatrick, 10 a.m. to 12:30 p.m. Saturday. Costs $5. Call Kapiolani Community College at 734-9211.