My cavalier is wonderful when we go to the park He runs round of lead his recall is about 90% there the odd 10% he does return just does so in a really big loop.  He is great with other dogs off lead but when we walk on lead he is very boisterous barking and whining and lunging at other dogs and sometimes other people any ideas how to stop this as it makes walking to the field very stressful and if I take either of the other dogs out with him they join in with him.  I had put it down to him bieng the youngest and being over excited he is a vocal dog at the best of times but I don't want him to scare anyone.

It is obviously due to excitment, you could try the training approach of stopping everytime he barks or whines and then when stops offer a treat or good boy, it takes time but works.  Or the quick route which I do with many a boisterous youngster, just have him carry something, a chew, a toy, ball, a lead?  It is the one simple way to make sure they can not bark or make noises. :-D

>any ideas how to stop this as it makes walking to the field very stressful and if I take either of the other dogs out with him they join in with him<

If I may suggest start varying your walks, as he associates 'walking to the field' as a prelude to an exciting walk, so gets all hyped up. Its a bit like people that take their dogs in the car ONLY to go for a walk and the dog becomes over excited and bark like mad in the car. (that is an example only)

Start walking him all sorts of places. Shops, parks, schools, to your friends, your neighbours, round the town, so that walking with you is not the same route to the field.

If this is impossible then as soon as he starts turn round and walk back, calmly and without a word, then turn again and repeat, as SOON as he whines or lunges, turn straight round, repeat this over and over until you can walk him all the way to the field without a sound. It may be exhausting to start with, repetitive and seemingly boring it, but this behaviour won't stop until you change things. it will remain miserable.

Walk him alone to start with, then with one, turning as soon as he starts.Until you can walk all of them.

But ideally try different walks, different routes, more interesting for you and your dogs and they won't know where they are going so should trot along nicely. Let us know how it goes.    

> we walk on lead he is very boisterous barking and whining and lunging at other dogs and sometimes other people any ideas how to stop this as it makes walking to the field very stressful

I am now very proud of how my 10 month old pup walks on the lead, he is a dream as long as I pay attention. He loves meeting people and dogs and used to pull like mad to get to people and do huge play-bows when he saw dogs (bear in mind he's over 9 stone in weight - that is a whopping play-bow and I doubt it would tempt many dogs to play :( ). He will now walk past people lovely and if we see a dog he is put in a 'sit' if he starts getting exited. I'm amazed at how simple the 'cure' was.

I will not take a step forward if the lead is not slack and as we approach anything that may excite him, I get his attention ('what's this' with a treat in my hand), if he continues to walk 'nicely' (on a slack lead without acting like an idiot) he gets the treat.
After a few days of this he started looking at me whenever we approached people/dogs without my needing to promt him, instead of getting exited, so he now gets verbal praise or a treat and then direction for what to do next (walk nice = carry on walking/wait = stay where you are/sit), any hint of him reverting back to being exited and he gets put in a 'sit & wait' (sit, wait for next command) and given a treat.

I never got on with the 'change direction' approach, as my pup is so big and clumbersome it's a bit like turning the QE2, so by the time we would be facing the other way the reason we turned was long forgotton!!

Sorry this all quite waffled (the kids being off for half term is driving me mental!!!), but maybe you will find something in all the waffle that may help. It's not nice when the walk feels like your running the gauntlet!! You'll get there, you just need to find away to make you more interesting than the other dogs & people before he'll listen to you, for my pup treats do the trick,:) When he's paying attention he can then learn what you want him to do and before long it becomes a habbit/reflex :)