RedactedNarrative: Two kayakers were in river exploring a nearby island when the wind began to pick up.  One kayakers had his dog onboard with him.  At one point a wave side swiped the kayak with the dog.  The dog then jumped out causing it to capsize.  The individual in the water was able to grab a hold of the kayak and swim to the nearby island with the 2nd kayakers assistance.  The dog swam to a nearby boat launch and signaled a need for help.  When rescuers arrived the individual who had been in the water was taken to the hospital and treated for mild hypothermia.