The coming decade is bright for optical/infrared surveys! The Ultraviolet Near Infrared Optical Northern Survey (UNIONS) is well on its way to covering its goal of over 5000 square degrees of the sky, and it will provide ugriz images to the Euclid Space Telescope. Euclid is itself set to launch from Cape Canaveral in summer 2023.  The Vera C. Rubin Observatory will begin science operations in 2024 and the Cosmological Advanced Survey Telescope for Optical and uv Research (CASTOR) is being developed for launch in the late 2020s. Canadian astronomers are at the forefront of these current and future surveys. Some key challenges for Canadian astronomers are determining the best ways to gain access and significantly engage with these large international surveys as well as the methods to process, analyse, store, and share the increasingly large and complex data sets.

The Surveys 2 Discoveries (S2D) workshop will focus on the Canadian science of these surveys and building critical mass in Canada to make discoveries with these data. The three-day workshop will focus on talks by scientists actively engaged in the survey collaborations, data analysis methods and pipelines, and results and forecasts from the surveys. In addition, there will be collaboration meetings for each of the surveys on separate days of the meeting. Afternoons may include science tutorials or hack sessions to get acquainted with the data products, formats, and analysis methods.