Bribery and reassurances that he's not as terrible as he's imagining he is. Ianto knows that he'll never impress John with floating, but someday he has to do something in front of him that isn't hiding under a carriage or falling down a vine or battling a sunburn or drowning in five feet of water that demonstrates he is not as terrible at life as all of this would have him seem.

"Yeah, alright," he says, glancing back to the shoreline and then back at John determinedly. The question is what does he want to do, and what's worth trying this again, but John gave him an offer, and it could be anything. His choice. Khalo seems to be full of options for that matter, he can make up his mind when he can think straight on solid ground again. "If you're asking for a minute or something you might as well just let me get out now though."