It's a long time that Nami stares at that little boat, perched up on a rock and alternately trying to talk herself out of it or talk herself into it. She hasn't seen any signs of life, and it's too cold here for sailing besides, for most normal folk. Surely it wouldn't be missed?

Rigged already for sailing and unguarded. Why, that's the same as an open invitation, isn't it? She'll bring it right back.

Maybe.

She's quiet as a mouse approaching the ship, and makes only slightly more noise as she scales the side, vaulting over the railing at the top to peer around for any witnesses.