Regnum Christi Men's Retreat

Regnum Christi Retreats 

Once a year, the members of the Movement should reserve a longer amount of time for their contact with God through a triduum of renewal or spiritual exercises. The Triduum of renewal is three days long, while spiritual exercises may last as long as six to eight days. Spiritual exercises have a specific internal dynamism which, counting on the help of divine grace, leads the earnest retreatant to a strong spiritual experience of conversion and identification with Christ.  (rcmb 267)

Link for more info