Resorts in Extension 21! For your holiday trip and travel needs we have great deals, budget, cheap, and luxury holiday resorts in the Extension 21 tourism region and many short-term vacation and holiday venues in the area. You can browse our listings of holiday lodgings and resorts in and near Extension 21 by clicking on the links below to get a personalized offer from a resorts property owner that may be able to cater for your specific travel arrangements surrounding Extension 21. They may have pictures of Extension 21 and their respective venues and you will also be able to contact the establishment directly to make online bookings and enquiries for a place to stay.