The reality of boarding the ship means a whole lot of standing in line and waiting in the hot sun. Of course. Everyone will have the idea of getting there early in order to beat the crowds. This is why I usually tend to show up to everything late and allow the crowd to beat me. I’m good wi\th not being first if it means less standing in line.
There will also be very slow-moving lines that are crowded. Those cute outfits you picked out for the perfect pictures will probably end up being drenched in sweat. Odds are the line will be filled with restless children who hate standing in line even more than you do and want to annoy each other, along with every other person around them.