[There's no right answer and Shiro appreciates more than he's ever going to be able to express his son's willingness to put his own urges on hold to listen to his father. So he stays quiet and still as his son searches and he smiles at the answer, something that quickly turns into a wide grin and he lets his son have that extra second of happy sunshine. And then he loudly kisses him on the forehead and tosses him, just the smallest bit, in his arms without actually letting go.]

Good observations, soldier. All right! [He's already leaning down to set his son on his feet.] Open your eyes, give me the beach towels and you can go get your feet in that water while I set up base. Don't go in past your knees though, got it?