I could see it working. American Women's Club attracts hundreds of americans, back in geneva. Some people find it hard just to get up and go out and do stuff in a foreign country. AWC ( or AIWC ) proposes dozens of activities ( hiking, skiing, even just restaurant outings and bbqs, english library, etc ).
The typical member is wife of ( but sometimes husband of ) an american posted abroad for work, but not exclusively ( more and more pensioners, nowadays ).
Obviously the pool of persons in the dr would be much smaller....... but still, I could see it work. ( organised hiking groups, discovery of diffrent parts of the dr, etc......).