[Just as Squid Girl had discovered, the underwater tunnel leading up into the Trubbish cave is quite lengthy, meandering far inland. It doesn't help that the current is obviously pushing against them down into the sea, either. There is air at the top of the tunnel, however, so there's no real question of drowning, although it might be a bit claustrophobic.
It will take about an hour of careful swimming before it broadens out. To the right, there is a high cliff - an opening can be seen up top.]
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It will take about an hour of careful swimming before it broadens out. To the right, there is a high cliff - an opening can be seen up top.]