I'm coming down in March and east coast is my main area to walk-about and learn.
But, if going.. This is a must see for me.
I've located it and see I'm looking at about a 3hr drive from the east coast. Then I see the tours there are not consistent.. They're not always open to the public.
There are tours offered coming out of San Juan, but really, why buy that tour?
Who's been? What can I expect? What would you recommend?