Pathfinder in Space (spelljammer) - adventure ideas?

[bookrat]

Hello Pathfinder fans!

My group just finished session 0 (game style discussion and character generation), and they all decided they want to do a spelljammer style game.

This is not a futuristic game. This is PF fantasy using magical ships to explore the universe.

I'm looking for some adventure ideas to throw at them for a fun and lighthearted game. Silliness is welcome. But so are some more gritty ideas.

Thanks!

Session 0 Background:

My players decided they're all from Earth in the 1200s. There's an elf ranger who came to earth from Tuath De Danann (the irish fey realm), a human druid, and a human fighter (who's going to be the captain of the ship).

Someone (I haven't decided who or what) came to earth and started building a space worthy ship. This is stolen from Robert Kroese's new book about Vikings in space, called the Saga of the Iron Dragon.

Anyways, the PCs decided to steal that ship and fly/sail off into the Aether (note, not space as we know it today,
but a fantasized version of it from centuries ago).