Oh, boy! This ski trip's turning into a real scare trip.
4 seconds sound clip from Scooby-Doo, Where Are You! - That's Snow Ghost (S1E17).
You can hear this line at 00:04:47.604 in the Blu-ray version of the episode.
Quote context
[...]
- Let's get out of here! Come on! Gangway! Hang on!
- That Snow Ghost is for real, all right. Look at the size of those footprints.
- Now what are we going to do, Freddy?
- Get a couple of snowcars and follow those tracks.
- I want to find out about our mysterious guest.
- Oh, boy! This ski trip's turning into a real scare trip.
- Boy, that Snow Ghost sure gets around.
- The tracks end at the edge of this chasm.
- Well, if he tried to walk across, the first step is a doozie!
- There he goes, flying across the sky.
[...]