The tunnel leads along in a winding fashion, up to a large set of stone doors, they appear to have been shaken in a great earth tremor for both have fallen from their hinges and are partially buried in the floor.
There is no space for you to climb or crawl around the doors but through large chinks you can see a cavern of some size, lit by a soft light that seems to come from a crack in the ceiling. Littered around the floor are large chunks of stone.
It is hard to make out from here but they appear to be carved. The tunnel curves past the doors and down towards the beach.