If you fall out of a kayak in cold water, it's important to try and get out of the water as quickly as possible. Cold water can quickly cause hypothermia, which can be fatal. If you are unable to get back into the kayak, you should try to stay close to it and use it as a flotation device. You should also try to stay as warm as possible and conserve your energy. If you have a wet suit or other thermal protection, put it on. 1. Get out of the water as quickly as possible 2. Stay close to the kayak and use it as a flotation device 3. Try to stay as warm as possible and conserve energy