before boogieing on down to the full-size rink

[Maybo]

For first-time skaters, you can rent out roller skates on site and get familiar with your wheels in the mini training area, before boogieing on down to the full-size rink to join the pros – and yes, there will be disco tunes.

Source: 38 Best things to do indoors on a rainy day in Hong Kong by Jenny Leung

Why do we need the bolded "on"?

 

[emsr2d2]

"Boogie on down" is a set phrase. Don't bother analysing it!