If you loved Scooby-Doo! Return to Zombie Island, try Scooby-Doo! Camp Scare
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Ethan Spaulding, and they both carry the cozy, slow burn mood tags, and they sit in Animation / Comedy / Family / Mystery territory. If that's the register that drew you to Scooby-Doo! Return to Zombie Island, the second film will land in a comparable space — through a different lens.
What Scooby-Doo! Camp Scare is
The screened rafts scrape the dock at sunset. Marshmallows drip off sticks. Across the lake, a shadow grows on the lodge wall. Guests vanish after campfire tales about the beast in the woods. Then the tents burst at the seams, one by one. A 2010 Hanna-Barbera Direct-to-Video redux, lean and literal.

