Treguier is the largest town of the ‘Granit Rose’ on the Northwest coast of Brittany, situated on the wide, deep estuary of the Ria and Aber rivers.

Along the existing old port and promenade are a collection of boating related structures, utilities, services yards, car parking areas and a local marina.

The master plan concept comprises:
- Future Golf Course
- Hotel spa
- Marina
- Yacht haven facility
- Port Authority 'Capitan’
- Promenade
- Plaza
- New ferry jetty
- Residential