Question about PCs finding entrance to Thisteltop in Burnt Offereings

[Salsa30]

Hey, sorry if this is a dumb/obvious question. This will be my first time a a GM and I have a question about running the Thistletop encounter in Burnt Offerings.

Encounter Spoilers:

So as I understand it, the PCs should defeat Tsuto in the Glassworks, and discover his journal that would lead them to searching for Nualia at Thistletop.

The AP says "A DC 14 Survival check reveals a path through the woods" and exceeding the check by 10 reveals the secret entrance to are C1.

It appears to me that if someone rolls the Survival check 24+, they move to the area C1 on the map, and can use the tunnels.

My question is what happens if you only beat the DC 14 check? You find "a path through the woods", but what exactly does that entail?

And what happens if you never beat the DC 24 Survival check? Do the PCs just never locate the entrance, or do they have to go the route up the cliffs, or keep trying until they finally roll high enough the beat the check?

Again, sorry if this is a dumb question. Thanks for any help though.

[Tangent101]

I suspect if you roll high enough you don't have to search for the entrance. If you didn't roll high enough you find the thorn hedge and then have to search to find a way in. Thus you'd need a Perception check at that juncture.

[gustavo iglesias]

Agree with Tangent. The DC 24 roll allow you to bypass perception. Otherwise you just arrive there and have to search the door or figure out some way to enter (capture and interrogate goblins, or whatever)