Free activities in Las Vegas include taking a self-guided tour of the Ethel M Chocolate Factory, going to M&M's World, and viewing the Fountains of Bellagio or the Fall of Atlantis Fountain Show at Caesars Palace. Tourists can also visit the Silverton's saltwater aquarium, notes National Geographic.
Both Silverton and Caesars Palace casinos offer free public viewing of their aquariums. Caesars Palace saltwater aquarium boasts 50,000 gallons and 300 fish. Silverton's saltwater aquarium is more than twice as large, not only housing over 4,000 tropical fish, but also offering free access to its twice-daily interactive feeding shows. Other free shows include the Venetian's Carnevale di Venezia, a carnival featuring Italian folk music, jugglers and living statues. It performs at several locations multiple times during the day as of 2015.
The Bellagio, Bally's and Caesars Palace all offer free water and light shows. The Fountains of Bellagio show occurs several times a day just outside of the hotel. The fountain show at Caesars Palace describes the myth of Atlantis with animatronic figures and water. Bally's boasts a 20-minute water, sound and light show after dark.
Both the Circus Circus and Excalibur casinos offer free entertainment in the form of circus and medieval performers. The Circus Circus show has clowns, contortionists and trapezes every day in the morning, while Excalibur has jugglers.