Ingrebourne Valley Visitor Centre, Hornchurch Country Park, Squadrons Approach , Hornchurch, RM12 6DF (Sat Nav RM12 6TS)
Launch your own Bottle rocket by the visitors centre as high into the sky as you can.
About the event
Please come dressed appropriately for being outside.
Know before you go
Guide dogs only
Dogs are not permitted in the visitor centre
Baby changing facilities