I would like to go to Mystery Spot near Santa Cruz California. What can you tell me about the mystery surrounding the Mystery Spot and how should I plan for this trip?

It is great to hear that you are looking to go to Mystery Spot in Santa Cruz, California. During winter it can get chilly so layer up. The road leading up from South Bay is windy on 17 South and then goes through a thicker forest. Mystery Spot is a tourist attraction that was opened in 1939 by George Prather. You can sign up for a guided tour at https://www.mysteryspot.com/ and Mystery Spot is open year round. The tour is approx. 40 mins long and you discover that gravity doesn't behave like it should or what should be higher than you turns out to be at same height or lower. You make a steep quick climb to a tilted cabin on a tilted road and you feel disoriented and seem to be at a severe incline when you enter this cabin. While there are various hypotheses as to reason for these effects, the most likely explanation is some level of optical illusion as the road is tilted at a severe opposite angle to the tilted roof line and the inside of the cabin. I think a combination of gravity hill where you get the sensation you are climbing up the road when in reality you are going down and the odd tilted angles of the cabin causes severe optical illusion. It also causes humans to fall back on visual senses more and ignore other senses which might be counter acting what you see.