"No problem." He considers, then digs up the map he has from his pocket, turns around and lays it out on the sand in front of him, so she can see it, too.

"I think I've got it. You don't have to tell me where they are, but if I point out where we are," more or less, "you can tell me in which direction to go? That'll get us closer. And I mean, left or right, up or down. Does that work?"

... there is not much to do with the wet underwear and he doesn't want to put it in the bag with the (mostly) cleaner stuff AND his eating supplies.