Cobourg is a very attractive town and is well served by road and rail transportation. Due to this, and the fact that the church buildings are larger than most others in the Cobourg area, St. Peter's is often used as the site for major events such as musical concerts, workshops and conferences. Such activities have increased with the completion of the new facilities.
St. Peter's hosts a major Remembrance Day Service each year followed by a marchpast of the The Concert Band of Cobourg, the Royal Canadian Legion and the Royal Marines Association. St. Peter's is the garrison church of the Royal Marines Association.