Some drove hours to attend the "Wings Over Big Bear" event.
The education-focused activities include birdwatching and tour hikes.
The heat wave was anticipated to last until Thursday, Oct. 8.
The Orange QB tosses four touchdown passes and runs for two TDs in the Foxtrot League opener.
Luke Hoffman runs for two TDs and QB Jackson Verplancke passes for two in the Epsilon League opener.
Friday night recap: Mission Viejo defeats Edison in the Alpha League; Capo Valley and Crean Lutheran triumph in the Bravo League.
El Modena disputes the game-winning TD pass from Huntington Beach QB Brady Edmunds to Dylan Bruce in the final seconds.
Orange Lutheran rolls to a one-sided victory against a Servite team missing several key players.
Santa Margarita records seven sacks and freshman Jayden Jack intercepts a pass in the final seconds to beat Mater Dei for the second year in a row.
Check out all of our coverage of the Week 6 high school football games.