The critical spot for a visit of the submarine is this hatch with a ladder as the only access. This is currently being tested with groups of seven visitors. Swiss museum of transportation in Lucerne, Switzerland, Nov 3, 2014. (4/15)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/70981241@N00">Kecko</a> from Switzerland (Rheintal SG)
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/kecko/15561743220/">PX-8 Mésoscaphe - Access</a>