Looks like fish bait to me! LOL That dog falls in & it's hypothermic in 2 seconds. Put it in an ammo can, it looks cold!Big dogs take up too much space and they slobber all over everything. Their turds are ENORMOUS and their claws hurt you and damage your gear when they are flailing around on your raft.
Take your big dog to the pound and trade it for a REAL river dog, a native of old Mexico: The Chihuahua.