Lyle Laylin
Day Trips from Lansing - for Geology
Fox Science Preserve Ann Arbor 1:00 each way
Put in Bay Ohio 3:30 each way (if you catch the ferry right)
https://putinbay.com/pib-activites/crystal-cave/
Kelley's Island Ohio 3:30 each way (if you catch the ferry right)
Ohio Caverns 3:40 each way
Olentangy Indian Caverns 3:40 each way
Seneca Caverns 2:50 each way