Outrageous tour for me would be under the ocean. I would like to explore the ocean deep and to see the beauty down there i want to see all the animal creatures living there. That would be so much fun and dangerous because of the killer sharks and other dangerous animals.
Amazing imagination, that would be a beautiful experience to behold. Finding a tour of underneath the ocean for a specific area, or specific type of person ( Based on their Age, gender or physical capabilities) would be quite a headache, sadly.