diff --git a/cave_data/1626-2023-ww-01.html b/cave_data/1626-2023-ww-01.html
index 0a19b216e..dcc376ede 100644
--- a/cave_data/1626-2023-ww-01.html
+++ b/cave_data/1626-2023-ww-01.html
@@ -17,7 +17,6 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-ww-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ancient Technology</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
@@ -40,7 +39,6 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 
 <entrance>
   <entranceslug>1626-2023-ww-01</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
-  <!-- DEBUG  1626-2023-ww-01+1626-2023-ww-01 'Z' == -->
   <letter></letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
 </entrance>
 
@@ -58,7 +56,6 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 <extent></extent>
 
 <description_file></description_file><!-- Path of top-level description file for this cave, when a separate file is used. Otherwise blank. -->
-<url>1626/2023-ww-01/2023-ww-01.html</url><!-- (Required). Relative URL of this cave. i.e the URL this cave appears at on the website, not including 'https://expo.survex.com/. Normally area/cavenum., e.g ('1623/000')-->
 </cave>
 </body>
 </html>
diff --git a/cave_data/1626-Loutoti-01.html b/cave_data/1626-loutoti-01.html
similarity index 98%
rename from cave_data/1626-Loutoti-01.html
rename to cave_data/1626-loutoti-01.html
index 11dce60f8..71d435dcb 100644
--- a/cave_data/1626-Loutoti-01.html
+++ b/cave_data/1626-loutoti-01.html
@@ -34,7 +34,7 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
     +   erforscht (exploration considered complete)
  -->
 <kataster_number></kataster_number> <!-- (Either this or unofficial_number is required). Official number in Austrian kataster if one has been allocated  -->
-<unofficial_number>Loutoti-01</unofficial_number><!-- (Either this or kataster_number is required). Initial temporary cave ID used until kataster number is allocated e.g. '2012-DD-01'-->
+<unofficial_number>loutoti-01</unofficial_number><!-- (Either this or kataster_number is required). Initial temporary cave ID used until kataster number is allocated e.g. '2012-DD-01'-->
 
 <entrance>
   <entranceslug>1626-Loutoti-01</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->