Whether you have visitors in town or are simply curious about area history, you're bound to learn something on this four-hour Miami 101 van tour led by Miami-Dade County EcoAdventures staff. Includes stops to key area neighborhoods. 10 a.m.-2:30 p.m. A.D. Barnes Park, 3401 SW 72nd Ave., Coral Terrace. $60. Details: (305) 365-3018 or www.miamidade.gov/parks.
Explore North Miami's Greynolds Park, Miami-Dade County's second-oldest park, with a naturalist guide describing the area's flora, fauna and history. 9 a.m. Greynolds Park, 17530 W Dixie Highway, North Miami. $3. Reservations recommended. Details: (305) 949-1741 or www.miamidade.gov/parks/parks/greynolds.asp.
KAYAK THE KEY
Happen upon great blue herons, upside down jellyfish and spotted eagle rays by kayak on a guided tour of the forgotten natural side of Key Biscayne. 1:30-4 p.m. Crandon Park Visitors and Nature Center, 6767 Crandon Blvd., Key Biscayne. $44. Details: (305) 365-3018 or www.miamidade.gov/parks.
Explore Key Biscayne on a three-hour, 10-mile guided bicycle tour. Highlights include views of Stiltsville, white-sand beaches facing the open ocean, the remote lighthouse outpost that is one of Miami-Dade County's oldest structures and the quiet beauty of Biscayne Nature Center. 9:30 a.m. Bill Baggs Cape Florida State Park, 1200 Crandon Blvd., Key Biscayne. $65. Details: (305) 774-9019 or firstname.lastname@example.org or www.dragonflyexpeditions.com.
PADDLE THE GABLES
Take in The City Beautiful's memorable sites by water on a Historic Coral Gables Waterway Canoe Adventure. 9 a.m.-noon. A.D. Barnes Park, 3401 SW 72nd Ave., Coral Terrace. $33. Details: (305) 365-3018 or www.miamidade.gov/parks.
Catch an up-close glimpse of wading birds and other wildlife on a guided kayak exploration of the Oleta River and its mangrove-lined creeks. Also included is an opportunity to visit an archeological site where Tequesta Indians lived more than 2,000 years ago. 10 a.m.-1 p.m. East Greynolds Northeast Regional Dog Park, 16700 Biscayne Blvd., North Miami Beach. $25. Details: (305) 945-3425 or www.miamidade.gov/parks/greynolds.asp.
FAIRCHILD FOR FREE
Admission to Fairchild Tropical Botanic Garden is free every Sunday in August. Fairchild Tropical Botanic Garden, 10901 Old Cutler Road, Coral Gables. Free. Details: (305) 667-1651 or www.fairchildgarden.org.
Private single-family or duplex residential property owners in Miami-Dade County can snag two free shade or fruit trees at this county event. 9 a.m.-noon. Miami-Dade County Fair & Expo, 11200 SW 24th St., Miami. Details: (305) 372-6784 or www.miamidade.gov/derm.