[Jamie hangs back a little at the cave's entrance, peering inside apprehensively. It's one thing to talk about going inside narrow, confined spaces while beneath the surface of an alien ocean, entirely another to actually do so.]

[He releases a breath that escapes as a cloud of bubbles rippling to the surface and carefully kicks into the tunnel, guiding himself along with one hand at the wall. He pokes around for a little while in silence, examining hunks of rock, bits of detritus, and bioluminescent plantlife as he makes his way through.]

Find anything yet? I'm not having much luck so far.