On Sunday 20 July luxury cycling brand Rapha is encouraging thousands of women to ride 100km in one day. I'm new to cycling but apparently that is do-able while also being a challenge (definitely sounds like a challenge to me).
If you fancy giving it a go, head to Rapha's website and sign-up. On the site you can find a ride near you, alternatively, if you happen to have some fellow female cycling friends, you can get together and do your own 100km ride on the day.