I don't like bumping topics. But just a few times then.

RP ideas maybe?

Beyond the Edge:

Finding a Atlantis like sea nation

A multi day escape from a pirate/privateer vessel

An encounter with a classic sea monster, was thinking either a Lusca or a sea dragon.

A Vikingr:

Starting with the Heathen Army attack on the Northumbrian fyrd.

Then from there having the army fracture up to begin raiding. The player group consisting of the players and a number of NPCs would be free to raid Northumbrian and North Mercia, before heading south and finding more looting oppurtunities.

While down there a moment of looting leads to the discovery of ancient tomes speaking of strange curses and great treasure hidden by dark things.