Complex sentence: Campbell Collegiate hosts various athletic tournaments for high schools both from within the province and from out of the province as well as tournaments such as the Campbell Invitational Tournament (CIT) and the Campbell Invitational Volleyball Tournament (CIVT).
Split into simpler sentences: Campbell Collegiate hosts various athletic tournaments for high schools which include both high schools in the province and high schools out of the province. Tournaments such as the Campbell Invitational Tournament (CIT) and the Campbell Invitational Volleyball Tournament (CIVT).