The pit is not deep, but when you descend, you step into water up to your knees. There is a hallway to the side, where the water is flowing from. It shouldn't be a problem to squeeze in. When you light your torch and look into the hallway, you see that it gets wider, and you notice a set of boots on a platform just above the water level.
Golos and Florence explore the opening in the side of the pit. It reveals a pool of water. The pair of boots are dirty with fresh mud, and the boy is nowhere to be seen. After a short discussion, they decide to explore the pool of water. A few short breathing excercises later, they both dive into the water to reveal a submerged tunnel.
They follow the tunnel - after a few moments, both break the water in what seems to be a cave. The air is surprisingly fresh for a tomb, and there is a hint of salty air in the cave. Jorad is nowhere to be seen, but shine lights into the cave from the outside via a cavern entrance. Interestingly enough, you can hear waves breaking from the outside.
As you step into the light, you see palm trees around you, a great sea to the west, and a massive storm far out above the sea shore. The realisation that this is a place very, very far from the Everflame Crypt dawns on you almost instantly.
Broken twigs and footprints indicate Jorad's movement from the cave. You follow them, and not an hour afterwards, you find Jorad's body collapsed in the underbrush. His dead eyes stare into the distance, and there is saliva and foam at his mouth. Next to his body, you see a handful of green berries spilled on the ground.
You decide to give the kid a proper burial, and set off to find something to help creating a makeshift shovel.
After a a few minutes of searching, you stumble upon another set of footprints. This time, it is a pair.
Following the footprints leads you towards the shore, where you find an improvised hut.
"Oh, this poor boy. Transported all this way to... who knows where? All to each poison berries. What a shame."
Golos approaches the hut with caution, his concern over Jorad pushed the back of his mind as he tries to ensure his own safety.
At Golos approaches he hears a lively conversation. ... All I am saying Grak is that since you are an alchemist you should know how to prepare a meal. I mean isn't cooking just simple alchemy? I did both catch and clean the fish so I would assume... Hey, I think I hear someone outside. There is a pause for a moment before Golos is challenged Who is outside of our hut? If you have no ill intent announce yourselves. There seems to be some sounds of preparation from inside.
"To an extent, yes. But it's not like we have a lot of accommodations here. I don't typically walk around with seasoning for when I'm stranded after a shipwreck. If you want," someone responds but then stops suddenly at the mention of a visitor.
"I have no ill intent! My name is Golos Unshur, and I am friend to all good people!" Golos steps back from the hut's entrance, giving the people inside room to step outside to meet him.
Tsunis pushes open the reed and branch door, blinking at the bright light and focusing on their human visitor. After a moment of study he offers Well met Golos. My companion and I were just about to cook some fish. Are you hungry?
"I would be grateful for some food, thank you!" Golos seems pleased at the invitation. "I would love some insight, too. Any chance you know where we are?"
Tsunis steps further inside, waving Golos in. Alas, we two arrived to this location via sinking boat. Other than a general location on a coast I cannot be more specific. He goes about preparing the fish. Now if you happen to have some pepper that would be a welcome thing. he adds.
"Well, we arrived by swimming through a magical portal, so you've got a wealth of more information that I do!" Golos takes his backpack off, setting it down on the ground. He fishes through it until he finds his mess kit, which he digs out to retrieve some pepper. "Here you go," he says, offering the spice to his new friends. Returning to the topic at hand, he continues, "so even knowing the coast we're off of gives me information I didn't have previously." He concludes with a smile and a questioning look.
Tsunis explains what he knows of the boat they were on, its starting port and planned destination. You look like a learned man. What can you make of that?
"No more than you, I'm afraid; are those cities even on Golarion? Are you from Triaxis?"
You don't know the specific location, but before your ship capsized/sunk, you recall the crew discussing moving through the Shackles towards south.
The island seems like you will be able to sustain yourself for a while. The palms near the beach have several coconuts near the trunks, and you're pretty sure you saw some sort of fruit deeper in the undergrowth.
Well, including the berries that poisone your friend Jorad, however... So mind that.
There definitely is fresh water. In the cave through which Florence and Golos arrived.
If you look hard enough, you could probably find another source as well.
Other than the conditions under which you appeared here, the island seems like an undiscovered paradise. Unless you like cold weather, in which case ... Mother nature is sorry for your inconvenience.