What is the best way to teach a dog to walk with you without a leash

My fiance and I like to go camping, and we want to be able to take our 3 puppies with us... but it's such a pain keeping all 3 of them on leashes! So I'm trying to figure out how to train them to stay with me when we walk... or even when we're sitting by the campfire. Any advice is much appreciated!

puppies take time and training, so be prepared to spend some time with each dog.

you need to teach a good recall on each dog, and you also need to encourage the dogs to constantly check in with you when off lead.the two behaviors go hand i hand and are simple to teach, but take time to get consistant.

carry a big pocket full of tiny treats, pea size is good. without calling the pups names, give them a treat each and every time the come to you to" check in" when you are out in the yard. I teach this in a cinfined area like a fenced yard, for the safety of the dog. They soon learn that checking in with mom is a good thing.

to teach a recall, you follow the same as above, but when you see the pup comming your way, and you are sure its comming to you, call its name and say come or here. And then reward it. It doesnt take long for the dog to figure it out.

but, here are some dont do items when teaching a reacall. Never call the dogs name or say come if something unpleasant is going to happen to the dog. This could be comming in from playing in the yard, or trimming nails, or getting a bath, or you leaving the house etc etc. Its something the DOG interprets and not good or fun.