A retreat refreshes and revitalizes, gives the opportunity for more time spent in prayer and contemplation, and rekindles and deepens one’s relationship with God.  The purpose of a spiritual retreat, as an addition to daily spiritual activities, is to temporarily leave behind the usual distractions we all face for a time long enough to allow relaxation and for an inner change to occur: the ongoing conversion of heart that is critical to deepening faith. 
We can turn to Jesus’ actions and his suggestions to others as transmitted in the gospel accounts. Sometimes Jesus would spend an entire night in retreat: “In those days he departed to the mountain to pray, and he spent the night in prayer to God." (Luke 6:12). “The apostles gathered together with Jesus and reported all they had done and taught.  He said to them, ‘Come away by yourselves to a deserted place and rest a while.’ People were coming and going in great numbers, and they had no opportunity even to eat. So they went off in the boat by themselves to a deserted place.” (Mark 6: 30-32) 

Here are links to some places where retreats can be found. Check them out:

Click this link CURSILLO for more details and who to contact if interested.