A military staff ride is a group exercise of three distinct phases: preliminary study, field study, and integration. It is designed for further the development of officers, in which each participant gives a briefing on plans, orders, events, decisions, and individuals. They frequently take on the persona of one of the primary participants in the battle. Afterwards, his/her colleagues question him/her about that participant's view of what has occurred on the battlefield at that point.
By definition, the staff ride is to be conducted by the military participants and not by park staff. The following links give in depth information on the proper conduct of a staff ride and will help you prepare.