The Links Association have used the British Golf Museum’s definition for their list:
A golf links is a stretch of land near the coast characterised by undulating terrain, often associated with dunes, infertile sandy soil and indigenous grasses such as marram, sea lyme and the fescues and bents which, when properly managed, produce the fine textured, tight turf for which links are famed. The course rota used for the Open Championship is made up of Links golf courses.