Approximately 400 students from several CU-Boulder summer diversity programs have been invited to the third annual Diversity & Excellence Summer Gathering on June 27 from 4 p.m. to 6:30 p.m. The gathering will be held at Observatory Field, south of the Business College along Regent Drive, and will include food and entertainment. The event is an opportunity for middle school, high school and undergraduate students from various summer diversity programs to meet each other and experience a college atmosphere, according to organizers.