You could train your dog to swim to shore and do it's business then swim back to the boat. I know it sounds out there but ask jgarrett how he did it. I watched his dog, Durango do it aginst a pretty swift current! :grin: I could not believe my eyes.
Yeah my dog Durango decided on his own when it was time to go and then jumped off the boat and swam ashore that night. We were rafted up in a strong current and he made it back; none of us thought he would be able to swim against the current. Amazing.
I second the comments about him "going" onboard; I don't think Durango would do it if his life depended on it.