Side mirror structure of small watercraft

1. A small watercraft comprising:

a steering handle;

a hatch cover disposed in a deck portion in front of the steering handle, the hatch cover including a side wall having a cut-out portion formed therein, the cut-out portion and the deck portion below the cut-out portion defining an opening; and

a side mirror assembly having a stay portion and a mirror portion, wherein the stay portion includes an internal stay portion and an external stay portion with a plate-shaped region;

wherein the internal stay portion includes a first end surface fixed to the deck portion below the hatch cover and a second end surface removably coupled with the mirror portion through the plate-shaped region of the external stay portion positioned therebetween;

wherein the second end surface of the internal stay portion is located in proximity to the opening, facing outside through the opening;

wherein the external stay portion is configured to cover the internal stay portion from at least above and laterally so that the internal stay portion is substantially unexposed to outside; and

wherein the mirror portion is removably coupled to the external stay portion in a corresponding location on an opposite side of the external stay portion from the second end surface of the internal stay portion.

2. The small watercraft of claim 1 , wherein the external stay portion is coupled with the deck portion through the internal stay portion without directly contacting the deck portion.

3. The small watercraft of claim 1 , wherein the first end surface of the internal stay portion is substantially horizontal, and the second end surface of the internal stay portion is substantially vertical.

4. The small watercraft of claim 1 , wherein the first end surface of the internal stay portion is provided with an inlet opening for engine coolant.