diff --git a/templates/cave.html b/templates/cave.html
index 2b65bdd..36bc4bd 100644
--- a/templates/cave.html
+++ b/templates/cave.html
@@ -25,8 +25,8 @@
         // Note the special code in views.caves.py to do this. The appropriate .svx/.3d file may not be simply the cave name +.3d
         const ui = new CV2.CaveViewUI( viewer );
 
-        ui.loadCave('{{svx3d}}.3d');
-        //ui.loadCave('/cave/3d/{{cave}}');
+        //ui.loadCave('{{svx3d}}.3d');
+        ui.loadCave('{% url "cave3d" cave %}');
     }
     window.onload = onLoad;
 </script>
@@ -91,6 +91,8 @@
     {{ cave.kataster_status|safe }}
 {% endif %}
 {% endcomment %}
+{% comment "Is this underground centre line section ever usefull?  I suspect it should be deleted.  MJG" %}
+{% endcomment %}
 {% if cave.underground_centre_line %}
     <h2>Underground Centre Line</h2>
     {{ cave.underground_centre_line|safe }}
@@ -193,9 +195,7 @@
     All <a href="/survexfile/{{cave.kataster_number}}">survexfiles</a> for this cave  {<br />
 {% if cave.survex_file %}
     Primary <a href="/survexfile/{{cave.survex_file}}">survex file</a> for this cave 
-    <p>[<a href="https://aardgoose.github.io/CaveView.js/">CaveView</a> display of the .3d file is temporarily disabled while we fix things (Nov.2021).<br> See <a href="/handbook/computing/todo.rst">/handbook/computing/todo.rst</a>.]<br><br>
-    
-    Download .3d file <a href="/cave/3d/{{cave}}">caves-{{  cave.area.all.0.kat_area }}/{{cave.kataster_number}}/{{svx3d}}.3d</a>
+ <br>
     Download .3d file <a href="{% url "cave3d" cave %}">caves-{{  cave.area.all.0.kat_area }}/{{cave.kataster_number}}/{{svx3d}}.3d</a>
 <br>
 cave ID '{{cave.reference}}'<br>