They go swimming in the Blue Hole, which was rumored to have no end in the bottom because no one had ever found one. The swim around together and then try to find the bottom themselves. Finch has incredibly good lung support, being able to hold his breath for about 6 minutes if he pushes it. Violet had to keep going back up for air and she started panicking when Finch hadn't come back up. The deeper Finch traveled down the more pressure he felt on his chest and he liked it, and almost kept going, lured by the pressure, when he remembered Violet and went shooting back up to the surface. Violet was furious, thinking she had lost Finch for good. The start arguing how they each think they're bad for each other, soon realizing what they're trying to protect each other from has already happened. Then Finch tells her that he loves her.