Need an adventure recommendation!

[Coridan]

Our group is doing 'side-quests' at the moment in Curse of the Crimson Throne. Everyone in the party is taking their own way out of Old Korvosa. One of the players is traveling through the planes. Any good adventures in the level 7-10 range that are extra-planar? I was looking through my Dungeons and found "Diplomacy" but it's level 18...

[MerrikCale]

I sense that 7th level may be a touch low for an extra-planar adventure

[GeraintElberion]

Seven Swords of Sin is set in Varisia and it's level 7: no plane-hopping though.

Some of the original adventures on the WotC site are good too.

[Coridan]

There's plenty of low CR outsiders. We've already done Seven Swords though, it was a side-quest in RotRL.

[Chris Mortika]

The AD&D supermodule OP1 featured a lot of planes-walking adventures. "Into the Astral Plane" by Bill Slavicek is for 6th - 7th Level characters.

When adapting an AD&D adventure, there are a lot of decisions you'll need to make, primarily Difficulty target numbers for skill checks. I'd aim on the low side for all the non-thief skills: 20 or so for 7th Level characters. These old adventures pretty much assumed that people could bluff, use rope, or swim as they pleased.

[Gardener, Warforged Druid]

The WOTC remake of Expedition to the Demonweb Pits has a number of planar encounters (other than the Demonweb, in case that's a touch too planar), and as I recall they're all low-midlevel encounters, starting in Sigil.

[Steven Tindall]

If you have access to the forgotten realms setting the eternal staircase is a great planular hop. Theirs lost paladins, good outsiders etc.. I happen to agree with the previous poster that 7th may be a bit too low for plane hoping but whenever I played a cleric/druid I spent character time actually spreading my faith and trying to convert NPC's, the DM enjoyed the roleplay and so did I.

[The Earl of Sandwich]

Dragon 353 has a fun article on a number of demi-planes that might fit the bill.