What was a cornfield 10 months ago is now a sandy beach with palm trees, inflatables, and skydivers.WATCH FULL STORY BELOWSkylake Adventures cut the ribbon Thursday morning in Sheridan, opening what the founders called a first-of-its-kind adventure park for Indiana.Co-founder Sean Howard said the project took nearly five years of planning. My partner Phil Sack and I had this vision to bring this to Hamilton Count, and now look at this. Watching …