The City of Blue Mountains has Sister City Relationships with Sanda City, Japan and Flagstaff, Arizona, USA.

Meetings: The Blue Mountains Sister Cities Committee holds a public meeting on the third Wednesday of each month at the Catholic Care Social Services Office, Shop 3, 163 Macquarie Road, Springwood. 

Vision: To promote the affiliation of Sister Cities by helping towns and cities to motivate communities to extend the hand of friendship nationally and internationally.

Mission: To provide a forum for cultural, educational and economic interchange between communities and to encourage friendship, co-operation and understanding to improve the quality of life worldwide.

Enquiries: For local call cost from Upper Mountains (02) 4780 5090 or Lower Mountains (02) 4723 5090.