The DEAP Collaboration, a group of over 65 researchers from ten institutions in Canada, the UK and Mexico,  has developed the DEAP-3600 detector – one of the most sensitive experiments for the direct detection of dark matter. DEAP-3600 has a sensitivity to dark matter interactions greater than a factor of twenty beyond the sensitivity of current experiments. This high sensitivity is due to the design of the detector, where all components have been selected for extremely low levels of radioactivity, the very large target mass possible with liquid argon, and the very low background level achievable at the unique SNOLAB facility – a deep underground laboratory which uses the 2 km of rock overburden to filter out cosmic-ray muons and associated backgrounds that would otherwise interfere with WIMP detection.