Even out beyond the beach? [Of course he thinks they dug a hole down somewhere to find that out - not that someone actually phased through it. Hikari isn't thinking that maybe there's a tiny hole somewhere in the barrier in the water. Not at all. It wouldn't be that easy.]
I'm fourteen. [Though maybe he's nineteen due to be in hibernation for five years. He'd count it if he had been awake at any point during that time.]