A Guide to Caring for your Wani when he is going through Child of the Sun Season:
As per my headcanon on the Kuja of Amazon Lily being a reptilian offshoot of the Mink people, they are affected by the Sun in the same way that the Mink are affected by the Moon. However, their curse is more gradual and related to the sun's intensity than to certain phases of the sun. Therefore, Crocodile is at his most 'primal' while in places where there is heavy sun exposure (such as in Alabasta) or when the sun is at its most intense point, i.e., the Solstice.
In the weeks leading up to the Solstice, Crocodile becomes a lot crankier. Quicker to lose his temper. His skin grows dry and starts to flake and shed, eventually giving way to scales. He also grows in height and bulk, getting more muscular. By the time of the summer solstice, he tends to keep himself unavailable and keeps to himself, as he's a rather unpredictable, unhinged beast at this time. Scales, bigger muscle mass, taller.
Eventually, it wears off, and he returns to how he was before. Transition is very painful for him, and he has a lot of aches and pains before and after the Season.
In Alabasta, he was always in a partially 'hulked out' state due to the sun's exposure. It was why he wore long clothes that covered his body entirely, as well as the large coat, so that people couldn't see his scales.
