-
Now Playing: Surfer rides on smoky lake in Canada
-
Now Playing: Firefighters race to save homes from wildfire in Turkey
-
Now Playing: What you should know about wildfires
-
Now Playing: Fog envelopes city skyline in Brisbane
-
Now Playing: Simone Biles announces she’ll compete in Olympics
-
Now Playing: Olympic wins and losses, wildfires and wildlife protectors: World in Photos, Aug. 2
-
Now Playing: What Simone Biles’ return to competition means for Team USA
-
Now Playing: 97-year-old tennis player becomes world's oldest tennis player
-
Now Playing: Israel gives vulnerable citizens COVID-19 booster shots in world first
-
Now Playing: Simone Biles to compete in balance beam final as Team USA racks up medals
-
Now Playing: Simone Biles set to compete in last Olympic event in Tokyo
-
Now Playing: Team USA's Isaiah Jewett helps fallen competitor across Olympic finish line
-
Now Playing: Drone footage shows devastation from Turkey wildfires
-
Now Playing: Beach volleyball stars April Ross and Alix Klineman talk Olympic win
-
Now Playing: Drama at the Olympics
-
Now Playing: Amanda Knox slams new Matt Damon film, 'Stillwater'
-
Now Playing: NIH director talks potential effects of booster shots
-
Now Playing: Israel begins administering 3rd boosters to vulnerable citizens
-
Now Playing: UK set to welcome American tourists