The phrase "to attend the summit" means to participate or join in a high-level meeting or conference where important topics or issues are discussed and decisions are made. Full definition
It is not yet known how many heads of state will attend the summit in person, or how many will be prepared to make real pledges. (scientificamerican.com)
By attending the summit you will make lasting connections with industry leaders and peers who share your same passion for youth sports safety. (youthsportssafetysummit.org)