Sunset and moonlight canoe tour at Key Biscayne. 6-8 p.m. Meet at Crandon Park Marina, 6767 Crandon Blvd., Key Biscayne. RSVP required. $15-$40. Details: (305) 365-3018.
A nature walk to a Tequesta Indian Burial. 7-9 p.m. at Deering Estate at Cutler, 16701 SW 72nd Ave., Cutler Bay. RSVP required. $5-$7. Details: (305) 235-1668.
A night-sky-viewing of the Harvest moon, Jupiter, and early fall constellations with the Southern Cross Astros. 7:30-10 p.m. at Fruit and Spice Park, 24801 SW 187th Ave., Homestead. Free ages 12 and under; $10 others. Details: (305) 247-5727 or www.scas.org.
Making Strides Against Breast Cancer 5k walk. Bayfront Park, 301 N. Biscayne Blvd., Miami. RSVP required. Details: (305) 594-4363 or www.cancer.org.
Wheelchair Tennis program. 9-11 a.m. at Five Tennis Club, 9299 SW 7th Terr., Miami. Ages 12 and up. Free. Details: (305) 752-4966.
Arch Creek Nature Walk. 10-11:30 a.m. Meet at Arch Creek Park Museum, 1855 NE 135th St., North Miami. $3. Details: (305) 948-2891.
Learn about ancient geological formations at Deering Estate at Cutler. 3 p.m. at 16701 SW 72nd Ave., Cutler Bay. RSVP required. $5-$7. Details: (305) 235-1668.
View and learn about the night sky with the Southern Astronomical Society. 8-11 p.m. at Bill Sadowski Park and Nature Center, 17555 SW 79th Ave. Free. Details: (305) 661-1375.
Historical Museum of Southern Florida presents a historical walking tour near Brickell Avenue with Paul George. See homes of past mayors, churches, a synagogue, and the Coral Gables trolley. Meet at Roads Professional Building, 2730 SW 3rd Ave., Miami. $17-$22. Details: (305) 375-1621.
Listen to music and learn about nature at Crandon Park Visitors and Nature Center. 4 p.m.-sundown at 6767 Crandon Blvd., Key Biscayne. Details: (305) 361-6767.
Junior League of Miami hosts the third annual golf tournament, a charity event to benefit community projects. 7:45 a.m. at Crandon Park Golf Course, 6700 Crandon Blvd., Key Biscayne. $200-$750. Details: www.jlmiami.org.
Miami Lighthouse for the Blind and Visually Impaired presents White Cane Safety Day and Walk-a-Thon. 9:30 a.m. Meet at 601 SW 8th Ave., Miami. $5 donation. Details: (305) 856-2288 or www.miamilighthouse.org.