Dogs on sailboats- long question
Start your puppy potty training on newspaper with astro-turf underneath. Quickly relocate the paper and astro turf outdoors when practical, then remove the newspaper and keep the dog targeted to the astro turf. On those dark and stormy nights when a ride in the dinghy to the shore is impractical the dog will ''go'' on the astro turf located on the foredeck. Always make a big squeely deal out of the procedure when the dog does it right. You CAN train older dogs to do this. ....... Companionways: if the steps are covered in a very rough non-skid patterned rubber material, the dog will get down OK, but will need a ''boost'' getting up. .... and you can train old dogs to do this, (I usually adopt older rescued english setters) just takes a little longer - all you need is patience. Keep the nails VERY short trimmed (avoids gouges in the wood work) and cut away and keep trimmed the hair that grows between the pads (minimizes slipping paws).
...... Boarding for a dinghy --- Make sure the dog has a harness when onboard... makes it easier getting into and out of the dinghy; getting in is no problem simply take some tension on the lead as the dog jumps overboard; getting out of the dink - train the dog to stand with his paws on the boat''s coaming and boost his butt when he goes aboard. Also If the dog has a harness its easier to rescue him with a boat hook if he goes overboard. Add a ''handle'' to the back of the harness. Arf Arf ;-)