Crandon Park Visitors & Biscayne Nature Center. 10 a.m.-4 p.m. Meet at Crandon Park Visitors and Biscayne Nature Center, 6767 Crandon Blvd., Key Biscayne. Daily. Details: (305) 361-6767, Ext. 112.
Crandon Bear Cut Preserve Nature Walks. 9 a.m.-noon. Saturdays and Sundays. Meet at Crandon Park Visitors and Biscayne Nature Center, 6767 Crandon Blvd., Key Biscayne. RSVP required. $3. Details: (305) 361-6767, Ext. 112.
TRAIL & CANOE TOURS
Arch Creek trail tours and Oleta River canoe trips. 10-11 a.m. for the trail tours. 10 a.m.-1 p.m. for the canoe trips. Meet at 1855 NE 135th St., North Miami. RSVP required. $3 trail tour; $25 adult, $15 child canoe trip. Details: (305) 944-6111.
DOWNTOWN MIAMI TOUR
Locals and visitors to Miami now have an opportunity to learn about the history as well as the revival of Downtown Miami through an interactive walking tour. Included are complimentary samplings at area restaurants. 10 a.m.-Noon. Every Wednesday & Saturday. Meet at Gusman Center for Performing Arts, 174 E. Flagler St. RSVP required. $10 children; $20 adults. Details: (305) 416-6868.
Greynolds Park Guided Nature Walks. Saturdays and Sundays. 9-10 a.m. and 3-4 p.m. Meet at Greynolds Park Boathouse, 17530 W. Dixie Highway, North Miami Beach. RSVP required. Details: (305) 948-2891.
Fairchild Tropical Botanic Gardens offers free admission to visitors on Sundays during August. 10901 Old Cutler Road, Coral Gables. Details: (305) 667-1651 or www.fairchildgarden.org.
Free Vizcaya Museum and Gardens tour with programs designed to explore the history of Vizcaya, its founder James Deering, and Miami, as well as connections to other areas and cultures of the world. Last Sunday of August. Vizcaya Museum and Gardens, 3251 S. Miami Ave. Free. Details: (305) 250-9133 or www.vizcayamuseum.org.
Canoe the Coral Gables waterways as guides describe the founding of the city and the construction of the Biltmore Hotel. 9 a.m., half-day tour ends at 1 p.m., full-day tour ends at 3 p.m. 3401 SW 72nd Ave., Coral Gables. $15 for adults, $30 for children. Details: (305) 666-5883 or www.miamidade.gov.
Miami-Dade Parks Department hosts Boating Safety Awareness Day in remembrance of their own Osmany "Ozzie" Castellanos, a former Miami-Dade Parks lifeguard, who died last year during a boating accident. Park staff will be on hand to discuss the importance of boating safety as well as review maritime rules and regulations. 6 a.m.-Noon. Black Point Marina, 24775 SW 87th Ave., Cutler Bay. Details: (305) 258-4092.