The South Course is the crown jewel of Quinta do Lago. Designed in 1974 by William Mitchell, who introduced American-style greens, tees and bunkers to the Algarve, it quickly established itself as one of Europe's premier championship courses. A favourite among European Tour professionals, this 6,500-metre, par-72 layout winds through umbrella pines, lakes and wildflowers, with stunning views across the Ria Formosa Natural Park.

Its championship status, however, does not deter the amateur golfer. While the 8th, 15th and 18th are testing holes for low-handicap players, the course's varying difficulty challenges golfers of all levels and abilities. Accurate tee shots are essential for reaching the greens, as the variety of doglegs and strategically positioned hazards demand precision throughout the round. The front nine, which weave through mature parkland, generally favour a draw, while the back nine, looping around the lake, favour a fade from the tee.