The Atlantic Partnership for Tomorrow’s Health (PATH) Study is part of the Canadian Partnership for Tomorrow Project (CPTP), the largest study of its kind ever undertaken in Canada. CPTP is a pan-Canadian longitudinal cohort study investigating how genetics, the environment, lifestyle, and behaviour contribute to the development of chronic diseases. CPTP is following the health of over 300,000 people for 30 years in British Columbia, Alberta, Ontario, Quebec, and in Atlantic Canada. The Atlantic PATH Research Portal holds data on over 34,000 participants from all four Atlantic Provinces. The dataset includes information about health, lifestyle, environment and behaviour of participants. Additionally, large subsets of participants have also provided physical measures and biological samples such as blood, urine, saliva, and toenails. More information about the questionnaires and biological samples can be found at: http://atlanticpath.ca/are-you-a-researcher The data and biological samples that participants have provided will help researchers find out why some people develop certain chronic diseases and others don’t. The data access process involves an initial consultation (to establish feasibility and provide a cost-recovery estimate), application submission and evaluation, and data access and reporting. More information about the data access process can be found at: http://atlanticpath.ca/are-you-a-researcher/access-our-data Atlantic PATH is an extraordinary resource for researchers in Atlantic Canada, it is rich in epidemiological and biological data that can help researchers save time, effort, and money that would normally need to be spent recruiting study participants and collecting data/biological samples.