Complex sentence: Thousand Islands Secondary School, with an enrollment of 1000 +, is both a university and college preparatory school with tech facilities and athletics programs, most notably the track and field, girls basketball, boys soccer, and cross country running teams.
Split into simpler sentences: Thousand Islands Secondary School, with an enrolment of approximately 1000, is both a university and college preparatory school with strong technology facilities. It has a athletics programs, most notably the track and field, women's basketball, men's soccer, and cross country running teams.