La Grande Boissière (also called "LGB") is the oldest and largest of the three. The primary school (beginning from age three) has approximately 550 students, and runs through grade 4. The middle school also has about 550 students, and runs from grade 5 to grade 8. The secondary school has around 800 students, beginning with 9th grade and going to grade 12 or 13. All three stages offer bilingual programmes. The Primary School Principal is Mr Duff Gyr, the Middle School Principal is Ms Shona Wright and the Campus and Secondary School Principal is Dr Conrad Hughes. ()