Lemon Bay High School

The NJROTC unit was established and is maintained by the United States Navy as a citizenship program with a focus on developing leadership characteristics in students. Students in NJROTC wear a modified U.S. Navy uniform once a week and must pass a physical education test once every nine weeks as part of the curriculum. Apart from traditional classwork, students are encouraged to participate in a number of extracurricular activities, including an athletic team, academic team, drill team, color guard and a number of community service organizations including the American Legion and Rotary Club. Student leaders are in direct control of the affairs of the unit and are supervised by two retired United States Navy instructors.[7] The unit is a part of NJROTC Area Seven, which includes the majority of schools with NJROTC programs in the southeast United States.

The Model United Nations club on campus focuses on involving students in a moot form of international debate. The club participates in a number of competitions against schools statewide and has achieved success in a number of these competitions, including at the University of Florida, University of Central Florida, Florida Gulf Coast University and the Florida High School Model United Nations (FHSMUN). The school was a founding member of the competition held at Florida Gulf Coast University, the Southwest Florida Model United Nations Competition.[8] The club also participates in charitable causes.

The theater program allows students to participate in a number of productions by enrolling in an elective class. Students produce several productions during the school year, including musicals during the summer and winter in which elementary and junior high students participate. Productions have included Kiss Me, Kate, The Sound of Music, West Side Story, The Music Man, Anything Goes, Seussical the Musical, Les Misérables, Swing!, Carousel, Hello, Dolly!, South Pacific, Guys and Dolls, You're a Good Man, Charlie Brown, Aida, Oklahoma!, Thoroughly Modern Millie, Cats, Grease, The Wedding Singer, Beautiful, Footloose, South Pacific and How to Succeed In Business Without Really Trying. The thespian troupe 05–257 at the school has achieved success at district, state and national level.

Marching Mantas performing during half time at a football game

The school's band is made up of a marching band, symphonic band, percussion ensemble and jazz band. The marching band, known as the Marching Mantas, performs a half-time show during school football games and competes against other schools at statewide competitions. The symphonic band consists of only woodwind, brass and percussion instruments, with no string section or string players participating. Both the symphonic and jazz bands are rated on their progress and quality of performance each year by their district Florida Bandmaster's Association.

Students may participate in the symphonic and jazz bands by enrolling in an elective class and may participate in the marching band and percussion ensemble as extracurricular activities without a required class.

The Marching Mantas participated in the Orange Bowl in Miami, Florida, in January 2007.[9]

Lady Manta cheerleaders in 2022

Fall season sports at LBHS include junior varsity and varsity swimming, American football, golf, volleyball, cheerleading and cross country running. During the winter season, sports include soccer, basketball and wrestling. During the spring season, students can participate in baseball, softball, tennis, track and field and weightlifting.[10] The school has long-standing rivalries with nearby Venice, Charlotte and Port Charlotte high schools. Lemon Bay wrestling has won two state championships, in 1998 and 1999.