Paul George of the Historical Museum of Southern Florida gives a history of South Beach and takes visitors on a South Beach Art Deco twilight walk. 6-8 p.m. Meet at the beach side of 1300 Ocean Dr., Miami Beach. $15-$20. Details: (305) 375-1492.
15th annual Hospitality Open Golf Tournament to raise funds for African-American scholarships. 7 a.m. registration and breakfast, 12:15 p.m. auction and awards ceremony. Doral Golf Resort and Spa, 4400 NW 87th Ave., Doral. Details: (305) 539-3084.
Miami-Dade County hosts Noches Tropicales, a concert celebrating the Hispanic heritage of music and dance. 7 p.m. at Tropical Park, 7900 SW 40th St. Free. Details: (305) 755-7948.
The annual Waterfest is a family event featuring hands-on activities, interactive water-oriented educational displays, Hawaiian music and dancers, a waterslide, food and drinks. 1-5 p.m. at Crandon Park Visitors and Nature Center, 6767 Crandon Blvd., Key Biscayne. Details: (305) 361-6767.
Historical Museum of Southern Florida hosts a Mother's Day Stiltsville and Key Biscayne boat tour. 10 a.m.-1 p.m. RSVP required. $34-$39. Details: (305) 375-1492 or www.historical-museum.org
Coral Gables Chamber of Commerce hosts the 11th annual Baptist Health Tour of Gables 5K run, walk and wheelchair. Includes an awards ceremony. 7:30 a.m. at Coral Gables City Hall, 405 Biltmore Way, Coral Gables. A portion of the proceeds goes to local community charitable organizations. $10-$30. Details: (305) 446-1657 or www.footworksmiami.com