Each term in GMIS is packed with extra-curricular activities encouraging students to take part in a variety of events, contests and presentations which ultimately leads to the all-round development of an individual.

The Arts

• Annual Stage Production
• Bee in My Bonnet Presentation
• Choir Singing Presentations
• Choral Festival
• Computer Flash Film Contest
• Dance Talentime
• Elocution/Poem Recitation
• Face Painting Contest
• Inter-School Painting and Drawing Contest
• Kitten Walk/Cub Walk Presentations
• Look Alike Contest and Presentation
• One Act Plays
• Poetry and Short Story Writing Contest
• Photography Contest
• Solo Singing Contest and Presentation
• Talentime with Musical Instruments

Knowledge and Curriculum-related

• Essay Writing Contest
• Extempore Speech Contest
• Field Trips
• General Knowledge Quiz
• Inter-Class Mathematics Quiz
• Inter-class Science Quest
• Inter-house Board Decor Presentation
• Inter-house Debate
• Mathematics Olympiad
• Science Quest
• Spelling Bee Contest

Sports

GMIS students regularly participate in the following sporting activities:

• Aerobics and Cheerleading
• Athletics
• Badminton
• Basketball
• Bowling
• Chess
• Cricket
• Hockey
• Ice Skating
• Roller Skating
• Soccer
• Swimming
• Table Tennis
• Tennis
• Volleyball

Some of the tournament and major sporting events held at GMIS are listed below:

• Annual Cricket Festival at Cibubur
• Annual Sports Meet
• Chess Tournament
• Inter-house Badminton Tournament
• Inter-house Basketball Tournament
• Inter-house Bowling Tournament
• Inter-house Discus and Javelin Throw Events
• Inter-house Indoor Cricket Tournament
• Inter-house Outdoor Cricket Tournament
• Inter-house Outdoor Soccer Tournament
• Inter-house Roller Skating Contest
• Inter-house Table Tennis Tournament
• Inter-house Volleyball Tournament
• Inter-school Basketball League