Help Identifying Movie/Episode

[ahkyahnan]

I’ve watched most everything Scooby, but there’s a few episodes and movies I haven’t gotten to yet. Today on Boomerang there was what looked like one of the movies (based on the animation and pacing) that featured a ghostly octopus. Shaggy was friends with some girl with long blonde hair wearing a diamond necklace that Velma started to use against the phantom octopus somehow. I turned it off cause it looked like it was near the end and I didn’t want to spoil it. My remote Guide listed it as Tom & Jerry so that didn’t help.

No spoilers please but can someone tell me what it was?

Thanks!
Mark

[Doo]

Nice to hear from you again Ahkyahnan, it's been a while! That would be the 2015 direct-to-video special Scooby-Doo and the Beach Beastie, which was made for the 13 Spooky Tales: Surf's Up, Scooby-Doo DVD set.

[ahkyahnan]

Thanks Doo!! Yeah it has been awhile, though I do check in now and again to check out the news.

I’ll try and post more often. There’s a few new releases I need to catch up on too.

Thanks again!
Mark