Take some time off from stressing over the holidays to relax and learn the 12 slow-flowing movements of Tai Chi to improve balance and flexibility and reduce stress. 9:45-11 a.m. Westwind Lakes Park, 6805 SW 152nd Ave., West Kendall. Free. Details: (305) 234-1673 or www.miamidade.gov/parks/parks/westwind.asp.
KAYAK THE KEY
Happen upon tropical fish, sea stars and spotted eagle rays by kayak on a guided tour of the shallow waters of Bear Cut Preserve. First-time kayakers and snorkelers welcome. 9:30 a.m.-1 p.m. Daily event. Crandon Park Visitors and Nature Center, 6767 Crandon Blvd., Key Biscayne. $70. Details: (305) 365-3018 or www.miamidade.gov/ecoadventures/kayak'snorkel'sea.asp.
NIGHT BY THE BAY
Take a nighttime hike through the Deering Estate and see what wakes after the sun goes down. 7-9 p.m. Deering Estate at Cutler, 16701 SW 72nd Ave., Palmetto Bay. $5-$10. Details: (305) 235-1668 or www.deeringestate.org.
Pedal along ancient limestone trails through native ecosystems with a guide at the Deering Estate at Cutler. Sites include a mangrove forest at the edge of Biscayne Bay, a tropical hardwood hammock and endangered rock pinelands. Bring your own bike. 9:45 a.m.-12 p.m. Deering Estate at Cutler, 16701 SW 72nd Ave., Palmetto Bay. $20-$25. Details: (305) 235-1668 or www.deeringestate.org.
Take a trip back in time on a bike tour through Miami-Dade's historic Redland Agriculture District, exploring sites like tomato and strawberry U-pick fields, plant nurseries and fish farms. Stops include Will Anderson's general store, Knaus Berry Barm and a tour of Redland Fruit and Spice Park, where bikers can sample various tropical fruits. 10 a.m.-1 p.m. Castellow Hammock Park, 22301 SW 162nd Ave., Redland. $28. Details: (305) 365-3018 or www.miamidade.gov/ecoadventures/bike'redland.asp.
The Bayfront Park Management Trust hosts free weekly yoga classes downtown. 6-7:15 p.m. Mondays and Wednesdays. 9-10:15 a.m. Saturdays. Bayfront Park, 301 N Biscayne Blvd., Miami. Details: (305) 358-7550 or www.bayfrontparkmiami.com.