One of the aims of VESTING is to promote the contact between her members, which is partly accomplished by organizing informal activities throughout the year. As a member of an informal committee, you can take part in organising (one of these) events!
Each academic year starts off with the VESTING Introduction Weekend, which takes place the weekend before the lecture weeks start. During this weekend the freshmen can get to know each other and VESTING. This weekend is organized by the Introduction Weekend Committee.
Another weekend events organized by VESTING are the Hitchhiking Weekend and the Sailing Weekend, organized by the Hitchhiking Committee and the Sailing Weekend Committee respectively. The hitchhiking and sailing weekend take place every other year. This means that in 2017 the sailing weekend took place and hence the hitchhiking weekend will take place in 2018.
Halfway the academic year, the Weekend Trip takes place, organized by the similar named Committee. This weekend has no predetermined activity; it's up to the committee what will be done!
Additionally, Activitiy Committee Activities and Sports Committee Activities, for example a Casino Night or Paintball. are organized throughout the year. More information about the committees themselves can be found here (AC) and here (SC).