Divide the participants into 3 smaller groups. Each group will be working on the same topic, e.g. Cat and dog lovers. The aim is to create a presentation (using Google Slides). If possible place each group in a separate room. Give printed instructions:
Each group has to login to a shared Google Drive folder
The 1st group has to create a folder and put photos/cartoons connected to the topic (only on Creative Commons license)
The 2nd group has to find interesting facts, information on the topic and collect them in a shared Google document mentioning the sources
The 3rd group has to find statistics on the topic and create charts based on them
If any of the group has a problem, they can make a video call using e.g. Skype or Hangouts to consult a trainer. Groups can use video call to contact each other.