diff --git a/core/views/caves.py b/core/views/caves.py
index ae9cef7..0d8c3e9 100644
--- a/core/views/caves.py
+++ b/core/views/caves.py
@@ -686,10 +686,11 @@ def ent(request, cave_id, ent_letter):
 
 def cave_debug(request):
     ents = Entrance.objects.all().order_by('id')
+    caves = Cave.objects.all().order_by('id')
     return render(
         request,
         "cave_debug.html",
-        {"ents": ents},
+        {"ents": ents, "caves": caves},
     )
     
 def caveslist(request):
diff --git a/templates/cave_debug.html b/templates/cave_debug.html
index ce598ea..fe6e4cd 100644
--- a/templates/cave_debug.html
+++ b/templates/cave_debug.html
@@ -5,14 +5,15 @@
 
 {% block content %}
 
-<h2 id="cmult">Entrances</h2>
-<p>These are Entrances read from the <var>expoweb/entrance_data/*.html</var> files. These are NOT the *entrance data points in the survex files.
+<h2>Entrances</h2>
+<p>These are Entrances read from the <var>expoweb/entrance_data/*.html</var> files. 
+These are NOT the *entrance data points in the survex files.
 <table>
 <tr><th>entrance</th>
 <th>ent slug</th>
 <th>Best station </th>
 <th>Location</th>
-<<th>Bearings</th>
+<th>Bearings</th>
 </tr>
 {% for ent in ents %}
 {% if ent.bearings %}
@@ -37,5 +38,26 @@
 {% endfor %}
 </table>
 
+<h2>Caves with a specific field set</h2>
+<table>
+<tr><th>Cave</th>
+<th>slug</th>
+<th>underground_centre_line</th>
+</tr>
+{% for c in caves%}
+{% if c.underground_centre_line %}
+<tr>
+  <td>
+     {{c}} 
+  </td>
+  <td>
+    <a href="{{c.url}}">{{c.slug}}</a>
+  </td>
+  <td>
+    {{c.underground_centre_line|safe}} 
+  </td>
+{% endif %}
+{% endfor %}
+</table>
 
 {% endblock %}