Situated in the Karas region, Rach Koiimasis sits amidst the Tiras mountains and on the edge of the Namib desert. The name "Koiimasis" is derived from the language of San (Bushman) people, and means "a place where people meet." Ranch Koiimasis is focused on breeding and training wild horses for general ranch purposes, in the style of californio/vaquero horsemanship. Most of their horses are a mix between the American Quarter Horse and Namibian wild horse, which is an athletic, desert adapted, surefooted mountain horse referred to as a Hardy Namibian Quarter Horse.
Ranch Koiimasis offers short-term volunteer internship programs, lasting from one to three months. Participants are given the chance to improve their riding skills, learn more about training horses, and gain experience handling wild horses. They also get the opportunity to work with cows, assisting with activities such as cattle roundups and branding. Lastly, since Ranch Koiimasis welcomes tourist visitors, interns also accompany tourists on short trail rides and sometimes even week long tours through the mountains.