The best replacement for ghost adventures is ghost hunters.

The best alternatives to ghost adventures are rated as following:
★★★★★  ghost hunters
★★★  taps
★  ghost lab
  dead files
  most haunted
  ghost hunter

Your alternative for ghost adventures is not listed? Suggest!
Speaking about ghost adventures, one probably shouldn't forget about zak.

Other search terms related to ghost adventures and their ratings are:

★★★★★ zak
★★★ zack
You have in mind a companion for ghost adventures and it is not yet here? Propose!

Google Trends

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ghost adventures
ghost hunters