Looks like a lot of fun! I've never been on a off leash walk with other (not family owned) dogs before, your making me envious lol.
Dylan will only go in where he can run in on sloping ground, like a beach. He won't jump in if there is a drop. You could try throwing a ball or stick in the shallows for him. Or just enjoy having a dry dogI really thought that having the others around enjoying their swim would encourage younger dogs to go in, too. Not Teddy, though, he runs to the edge with another dog and then turns right back to me without even getting his feet wet