You’ve probably heard of the “Internet of Things”. It’s a connected network of everyday objects that talk to each other, such as cars, kitchen appliances and heart monitors. But did you know that the Internet of Things also extends deep underwater off Canada’s three coasts? Think of it as a Fitbit for the ocean. Made possible by world-leading Oceans 2.0 data management software, Ocean Networks Canada’s (ONC) infrastructure is continuously monitoring the pulse and vital signs of our deep sea and coastal environments. Thousands of Internet-connected sensors gather real-time continuous data⎯everything from temperature, salinity, tides, seismic activity to underwater noise levels and video footage. # Oceans 2.0 helps us #knowtheocean Gathering 250 GB per day from an expanding network of Internet-connected instruments, Oceans 2.0 makes ocean data available to scientists, communities, and leaders, helping them to make informed decisions about climate change, earthquake and tsunami detection, marine safety, life in the ocean, and more (Figure 1). And it’s starting to attract international attention.