West entrance to me seems to get you closer. I went on the 4/7/19 and the caves were closed. https://www.nps.gov/pinn/planyourvisit/maps.htm
Both caves can be closed suddenly due to storms and high water. March The entire cave is usually open for the last week of the month. It may open earlier, up to the full month, depending on the presence of bats. April 1 - mid-May The lower half of the cave may be open. Mid-May - mid-July The entire cave will be closed to protect the colony of bats as they raise their young. Mid-July - September 30 The lower half of the cave may be open. October The entire cave is usually open for the last week of the month. It may open earlier, up to the full month, depending on the presence of bats. Nov. 1 - end of Feb. The lower half of the cave may be open.
East, they were closed when we went in January. Check NPS to see if they are opened.
Just went through the caves by the reservoir on Monday, absolutely beautiful
They are open off of hwy 25 thru Hollister.
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