SD4 is a wonderful event that allows members of Tau Beta Sigma and Kappa Kappa Psi to meet together in sunny San Diego to take part in service projects, memorial services, and hang out together to celebrate the 4th of July! The event has been going on for 30+ years and every year we try to make it better and better. We would like to keep this tradition going and this year we won't let money get in our way! All we ask is for a small donation as every little bit helps us execute this event. The money will go towards food for members, transportation around events, and things needed to take care of such a large group! We appreciate every little bit.