diff --git a/infodx.htm b/infodx.htm
index 5a31e3f41..15f6cdcaf 100644
--- a/infodx.htm
+++ b/infodx.htm
@@ -69,7 +69,7 @@ href="pubs.htm">Publications index</a>, as are the log book accounts.</p>
   <li> <a href="gallery/low.htm">Base camp and non-caving</a> activities</li>
   </ul></li>
 <li><a href="primer.htm">Primer</a> - for new expedition members</li>
-<li><a href="handbook/look4.htm">Prospecting</a> - Expo handbook</li>
+<li><a href="handbook/look4.htm">Prospecting</a> - Expo handbook (<a href="handbook/prospecting_guide.html">fancy clickable map</a>) </li>
 <li><a href="pubs.htm">Published Articles</a> in Cambridge Underground and elsewhere (bibliography with links)</li>
 <li><a href="handbook/rescue.htm">Rescue guide</a> - part of the evolving CUCC Expo handbook</li>
 <li><a href="handbook/rigit.htm">Rigging pitches</a> - embryonic Expedition Handbook section