Private golf courses in Brewster are the golf courses exclusively open to their members only. Country clubs are private golf courses. One will have to join the club to have full access to the golf course. Most private golf courses, however, do allow non-members to play as guests of members. The cost to join a private golf course varies widely and can be more affordable than one might guess. But at the other end of the scale, the most private and luxurious of courses can cost hundreds of thousands of dollars to join.