Erfenis Dam is located within the Erfenis Dam Nature Reserve, situated 18 kilometres east of Theunissen in the Free State province, on the Theunissen–Winburg road (R708). From the N1 highway, the turnoff lies 20 kilometres west of Winburg. The reserve gate is open from 06:00 to 21:00, with the office operating from 07:30 to 16:00.

The dam supports all types of aquatic sport, and slipways and boathouses are available for those arriving with watercraft. This infrastructure makes launching and retrieving boats straightforward. The dam is also the venue for the annual Erfenis Dam Mile Swim, held each November, which paddlers should be aware of when planning visits around that time.

The surrounding reserve covers an area that includes ten kilometres of tourist roads and supports a variety of wildlife. Bird life includes terrestrial species, waterfowl, and raptors such as the African fish eagle. Fish species present in the dam include carp, barbel, yellowfish, and mudfish, making the water body of interest to anglers as well as paddlers.

Accommodation options within the reserve include a caravan park with ablution facilities and power points for ten caravans, as well as additional shoreline caravan sites without power. A bush camp with five huts is also available; each hut is equipped with four beds and a refrigerator, and the camp is situated near an ablution block with warm water. A scullery and lapa are available for groups. There are no shops within the reserve, so all provisions must be brought in.

The reserve manager can be contacted at 060 968 3178 or 072 230 2779, or by email at belinda.sep@gmail.com. The office number is 057 733 2125. Bookings and further information regarding any specific regulations for paddling or other water activities should be directed to the reserve management.