We measure trends in activity patterns during the “lockdown” of the COVID-19 pandemics, using the Apple Maps Mobility Trends Report, the Google COVID-19 Community Mobility Reports and data from a worldwide online survey with more than 100,000 participants. We focus on the months of March and April 2020, that is, a period where in most countries a “lockdown” took place that restricted social interactions and daily activities. While the Apple Maps data gives high quality data on planned trips, Google data gives high quality location data, and the survey supplements both with data on activity intention. We focus on a few countries with particularly good data coverage: France, Germany, UK and the US. Our key finding is that during this period in most of these countries already a significant re-increase of activities was visible. The increase in activity cannot be explained by relaxed regulations in the countries under study. While some of these activities are certainly unavoidable, we also measured an increase in less necessary activities, which should be taken into account when discussing policies for the containment of the pandemics. We also find strong differences in the relative importance of various activities across countries. This may provide policy makers with valuable information about what type of activities are most relevant to reduce for curtailing the pandemics.