diff --git a/cave_data/1623-134.html b/cave_data/1623-134.html
index 2fe9608a7..2ef6d52b0 100644
--- a/cave_data/1623-134.html
+++ b/cave_data/1623-134.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/134.htm</description_file>
-<url>wilden/134.htm</url>
+<description_file></description_file>
+<url>1623/134.htm</url>
 </cave>
 </body>
 </html>
diff --git a/cave_data/1623-45.html b/cave_data/1623-45.html
index f885c3ff4..b4688d7fc 100644
--- a/cave_data/1623-45.html
+++ b/cave_data/1623-45.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/45.htm</description_file>
-<url>wilden/45.htm</url>
+<description_file></description_file>
+<url>1623/45.htm</url>
 </cave>
 </body>
 </html>
diff --git a/cave_data/1623-46.html b/cave_data/1623-46.html
index 10db8ed6b..656e69441 100644
--- a/cave_data/1623-46.html
+++ b/cave_data/1623-46.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/46.htm</description_file>
-<url>wilden/46.htm</url>
+<description_file></description_file>
+<url>1623/46.htm</url>
 </cave>
 </body>
 </html>
diff --git a/cave_data/1623-47.html b/cave_data/1623-47.html
index 42adac744..430c35ef3 100644
--- a/cave_data/1623-47.html
+++ b/cave_data/1623-47.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/47.htm</description_file>
-<url>wilden/47.htm</url>
+<description_file></description_file>
+<url>1623/47.htm</url>
 </cave>
 </body>
 </html>
diff --git a/cave_data/1623-48.html b/cave_data/1623-48.html
index 2634edd4e..9e01b3ace 100644
--- a/cave_data/1623-48.html
+++ b/cave_data/1623-48.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/48.htm</description_file>
-<url>wilden/48.htm</url>
+<description_file></description_file>
+<url>1623/48.htm</url>
 </cave>
 </body>
 </html>
diff --git a/cave_data/1623-49.html b/cave_data/1623-49.html
index 61b9523e0..4dae0aaf8 100644
--- a/cave_data/1623-49.html
+++ b/cave_data/1623-49.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/49.htm</description_file>
-<url>wilden/49.htm</url>
+<description_file></description_file>
+<url>1623/49.htm</url>
 </cave>
 </body>
 </html>
diff --git a/cave_data/1623-50.html b/cave_data/1623-50.html
index a5202cf39..4cf475233 100644
--- a/cave_data/1623-50.html
+++ b/cave_data/1623-50.html
@@ -33,8 +33,8 @@
 <depth></depth>
 <extent></extent>
 <survex_file></survex_file>
-<description_file>wilden/50.htm</description_file>
-<url>wilden/50.htm</url>
+<description_file></description_file>
+<url>1623/50.htm</url>
 </cave>
 </body>
 </html>
diff --git a/entrance_data/1623-4.html b/entrance_data/1623-4.html
index a1415bc7a..737f4fa49 100644
--- a/entrance_data/1623-4.html
+++ b/entrance_data/1623-4.html
@@ -13,7 +13,7 @@
 <entrance_description>A 2.2m wide and 1.3m high entrance leads horizontally to "Bruchschutt und Sickerwassergerinne". </entrance_description>
 <explorers></explorers>
 <map_description></map_description>
-<location_description>Near <a href="3.htm">Gellerofen (1623/3)</a>, at the SW foot of the Loserstockes.</location_description>
+<location_description>Near <a href="/cave/1623-3">Gellerofen (1623/3)</a>, at the SW foot of the Loserstockes.</location_description>
 <approach></approach>
 <underground_description></underground_description>
 <photo></photo>