id get her on one of those extractible leads so she can go abit,every time you say here and she dont come give a sharp tug on the lead,when she does come back give her a treat and lots of fuss,you got to be realy patient with the spaniel breed and try not to get angry with them,there a very clever breed they soon catch on,atb kk
another thing iv noticed if they tend to piss off too far ahead give a whistle and start to walk away the opposite way,when they see your not following them 9 out of 10 times they will run back to you