From west of Henfield the two branches of the river meet, before flowing between Upper Beeding and Bramber, past Coombes, through in a gap in the South Downs to the English Channel at Shoreham-by-Sea.
From west of Henfield the two branches of the river meet, before flowing between Upper Beeding and Bramber, past Coombes, through a gap in the South Downs near Lancing College where the Adur is fed by the Ladywell Stream. The river continues on to the English Channel at Shoreham-by-Sea.