Between the ages of 10 and 14 girls can become members of the Guides.

Between the ages of 14 and 26 a member of Girlguiding UK is also a member of the Senior Section, regardless of whether they are also a Guide, Young Leader or Adult Leader.

A Young Leader is a Senior Section member aged between 14 and 17 who helps as a "junior leader" at a Rainbow, Brownie or Guide group.  There is a leadership development program that Young Leaders can follow, which can lead to a full adult leadership warrant once the Young Leader turns 18.

The Queens Guide Award is the highest award that a Senior Section member can achieve.  It can take up to 3 years to complete and involves personal challenges across 5 zones.