This boy’s dream was to set sail and become king of the pirates.

As he set sail with his crew consisting of Nami, Zoro, Usop p and Sanji, he set out for the next city out, where they could stop for supplies and chances are, meet new people to join their crew.

Luffy did say ten or so would work. But as the Going Merry arrives at the dock, he gets off to take a minute and take in the smell of the civilization after being out on sea for so long.