diff --git a/_includes/footer.html b/_includes/footer.html
index a38669e..4bd4aec 100755
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -5,11 +5,11 @@
       <div class="col-md-12">
         <div class="footer-manu">
           <ul>
-            <li><a href="{{ site.url }}/about">About Us</a></li>
-            <li><a href="{{ site.url }}/contact">Contact Us</a></li>
+            <li><a href="{{ site.url }}{{ site.baseurl }}/about">About Us</a></li>
+            <li><a href="{{ site.url }}{{ site.baseurl }}/contact">Contact Us</a></li>
           </ul>
         </div>
-        <p>Content by <a href="{{ site.url }}/about/">HPC-UK</a>.</p>
+        <p>Content by <a href="{{ site.url }}{{ site.baseurl }}/about/">HPC-UK</a>.</p>
 
         <p>Copyright &copy; Design &amp; Developed by <a href="http://www.themefisher.com">Themefisher</a>. All rights reserved.</p>
         <p>Selected image copyright &copy; <a href="http://http://www.istockphoto.com/">iStock</a>. All rights reserved.</p>
diff --git a/_includes/head.html b/_includes/head.html
index 3aa831e..480f304 100755
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -6,29 +6,29 @@
 <!-- Place favicon.ico and apple-touch-icon.png in the root directory -->
 
 <!-- CSS -->
-<link rel="stylesheet" href="{{ site.url }}/css/owl.carousel.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/bootstrap.min.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/font-awesome.min.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/airspace.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/style.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/ionicons.min.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/animate.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/responsive.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/syntax.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/hpcuk.css" />
-<link rel="stylesheet" href="{{ site.url }}/css/tier2courses.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/owl.carousel.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/bootstrap.min.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/font-awesome.min.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/airspace.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/style.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/ionicons.min.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/animate.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/responsive.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/syntax.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/hpcuk.css" />
+<link rel="stylesheet" href="{{ site.url }}{{ site.baseurl }}/css/tier2courses.css" />
 <!-- Js -->
 <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
-<script>window.jQuery || document.write('<script src="{{ site.url }}/js/vendor/jquery-1.10.2.min.js"><\/script>')</script>
-<script src="{{ site.url }}/js/bootstrap.min.js"></script>
-<script src="{{ site.url }}/js/owl.carousel.min.js"></script>
-<script src="{{ site.url }}/js/plugins.js"></script>
-<script src="{{ site.url }}/js/min/waypoints.min.js"></script>
-<script src="{{ site.url }}/js/jquery.counterup.js"></script>
+<script>window.jQuery || document.write('<script src="{{ site.url }}{{ site.baseurl }}/js/vendor/jquery-1.10.2.min.js"><\/script>')</script>
+<script src="{{ site.url }}{{ site.baseurl }}/js/bootstrap.min.js"></script>
+<script src="{{ site.url }}{{ site.baseurl }}/js/owl.carousel.min.js"></script>
+<script src="{{ site.url }}{{ site.baseurl }}/js/plugins.js"></script>
+<script src="{{ site.url }}{{ site.baseurl }}/js/min/waypoints.min.js"></script>
+<script src="{{ site.url }}{{ site.baseurl }}/js/jquery.counterup.js"></script>
 <script async defer src="https://buttons.github.io/buttons.js"></script>
 
 
-<script src="{{ site.url }}/js/main.js"></script>
+<script src="{{ site.url }}{{ site.baseurl }}/js/main.js"></script>
 
 <!--
 /*
diff --git a/_includes/header.html b/_includes/header.html
index a68f45d..0b80ab3 100755
--- a/_includes/header.html
+++ b/_includes/header.html
@@ -14,20 +14,20 @@
             <span class="icon-bar"></span>
             <span class="icon-bar"></span>
             </button>
-            <a class="navbar-brand" href="{{ site.url}}/">
-              <img src="{{ site.url }}/img/hpcuk_logo.png" alt="Logo">
+            <a class="navbar-brand" href="{{ site.url }}{{ site.baseurl }}/">
+              <img src="{{ site.url }}{{ site.baseurl }}/img/hpcuk_logo.png" alt="Logo">
             </a>
           </div>
             <!-- Collect the nav links, forms, and other content for toggling -->
             <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
               <ul class="nav navbar-nav navbar-right">
-                <li><a href="{{ site.url }}/facilities">Facilities</a></li>
-                <li><a href="{{ site.url }}/access">Access</a></li>
-                <li><a href="{{ site.url }}/training">Training</a></li>
-                <li><a href="{{ site.url }}/docs">Documentation</a></li>
-		<li><a href="{{ site.url }}/rse">RSE</a></li>
-                <li><a href="{{ site.url }}/contact">Contact</a></li>
-                <li><a href="{{ site.url }}/about">About</a></li>
+                <li><a href="{{ site.url }}{{ site.baseurl }}/facilities">Facilities</a></li>
+                <li><a href="{{ site.url }}{{ site.baseurl }}/access">Access</a></li>
+                <li><a href="{{ site.url }}{{ site.baseurl }}/training">Training</a></li>
+                <li><a href="{{ site.url }}{{ site.baseurl }}/docs">Documentation</a></li>
+		<li><a href="{{ site.url }}{{ site.baseurl }}/rse">RSE</a></li>
+                <li><a href="{{ site.url }}{{ site.baseurl }}/contact">Contact</a></li>
+                <li><a href="{{ site.url }}{{ site.baseurl }}/about">About</a></li>
 		<!-- Place this tag where you want the button to render. -->
 		<li><a style="color: darkblue" href="https://github.com/hpc-uk/hpcuk-website/fork/" title="Fork this website on Github so you can contribute">Fork on Github</a></li>
               </ul>
diff --git a/facilities/index.html b/facilities/index.html
index 3ee4ded..235b71d 100644
--- a/facilities/index.html
+++ b/facilities/index.html
@@ -13,7 +13,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.archer2.ac.uk">
-      <img src="{{ site.baseurl}}/logos/ARCHER2_logo.png" class="center-block img-responsive" />
+      <img src="{{ site.baseurl }}/logos/ARCHER2_logo.png" class="center-block img-responsive" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -33,7 +33,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.cirrus.ac.uk">
-      <img src="{{ site.baseurl}}/logos/cirrus_PoweredbyEPCC.png" class="center-block img-responsive" alt="Cirrus logo" />
+      <img src="{{ site.baseurl }}/logos/cirrus_PoweredbyEPCC.png" class="center-block img-responsive" alt="Cirrus logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -51,7 +51,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.baskerville.ac.uk">
-      <img src="{{ site.baseurl}}/logos/Baskerville.png" class="center-block img-responsive" alt="Baskerville logo" />
+      <img src="{{ site.baseurl }}/logos/Baskerville.png" class="center-block img-responsive" alt="Baskerville logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -69,17 +69,17 @@ <h2>UK HPC Facilities</h2>
 
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
-    <a href="https://gw4.ac.uk/isambard/">
-      <img src="{{ site.baseurl}}/logos/GW4-logo_CMYK.jpg" class="center-block img-responsive" alt="GW4 logo" />
+    <a href="https://docs.isambard.ac.uk">
+      <img src="{{ site.baseurl }}/logos/Gw4_logo_navy.png" class="center-block img-responsive" alt="GW4 logo" />
     </a>
   </div>
   <div class="col-sm-8">
     <p>
-      <a href="https://gw4.ac.uk/isambard/">Isambard at GW4</a>
+      <a href="https://docs.isambard.ac.uk">Isambard at GW4</a>
       is one of the EPSRC Tier-2 HPC facilities. Isambard provides multiple advanced architectures
       within the same system in order to enable evaluation and comparison across a diverse range of
-      hardware platforms.
-      Free access is available to academic researchers working in the EPSRC
+      hardware platforms.  The current Isambard 3 service includes Nvidia CPU Superchips with 55,296 cores.
+      Free access is available to academic researchers working in the UKRI
       domain and from some UK universities; academic users from other domains and institutions
       can purchase access. Industry access is available.
     </p>
@@ -89,7 +89,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.csd3.cam.ac.uk/">
-      <img src="{{ site.baseurl}}/logos/cambridge_logo.jpg" class="center-block img-responsive" alt="Cambridge logo" />
+      <img src="{{ site.baseurl }}/logos/cambridge_logo.jpg" class="center-block img-responsive" alt="Cambridge logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -108,7 +108,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://sulis.ac.uk/">
-      <img src="{{ site.baseurl}}/logos/hpcmidplus_logo.png" class="center-block img-responsive" alt="HPC Mid+ logo" />
+      <img src="{{ site.baseurl }}/logos/hpcmidplus_logo.png" class="center-block img-responsive" alt="HPC Mid+ logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -131,7 +131,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.jade.ac.uk/">
-      <img src="{{ site.baseurl}}/logos/uofoxford_logo.png" class="center-block img-responsive" alt="Oxford logo" />
+      <img src="{{ site.baseurl }}/logos/uofoxford_logo.png" class="center-block img-responsive" alt="Oxford logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -151,7 +151,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://mmmhub.ac.uk/">
-      <img src="{{ site.baseurl}}/logos/mmmhub_logo.png" class="center-block img-responsive" alt="MMM Hub logo" />
+      <img src="{{ site.baseurl }}/logos/mmmhub_logo.png" class="center-block img-responsive" alt="MMM Hub logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -171,7 +171,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.dirac.ac.uk">
-      <img src="{{ site.baseurl}}/logos/dirac.png" class="center-block img-responsive" alt="DiRAC logo" />
+      <img src="{{ site.baseurl }}/logos/dirac.png" class="center-block img-responsive" alt="DiRAC logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -190,7 +190,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.ni-hpc.ac.uk/">
-      <img src="{{ site.baseurl}}/logos/nihpc.png" class="center-block img-responsive" alt="NI-HPC logo" />
+      <img src="{{ site.baseurl }}/logos/nihpc.png" class="center-block img-responsive" alt="NI-HPC logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -209,7 +209,7 @@ <h2>UK HPC Facilities</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://n8cir.org.uk/supporting-research/facilities/nice/">
-      <img src="{{ site.baseurl}}/logos/n8cir-bede.png" class="center-block img-responsive" alt="N8CIR Bede logo" />
+      <img src="{{ site.baseurl }}/logos/n8cir-bede.png" class="center-block img-responsive" alt="N8CIR Bede logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -235,7 +235,7 @@ <h2>Worldwide HPC Facilites</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.prace-ri.eu">
-      <img src="{{ site.baseurl}}/logos/prace-logo.png" class="center-block img-responsive" alt="PRACE logo" />
+      <img src="{{ site.baseurl }}/logos/prace-logo.png" class="center-block img-responsive" alt="PRACE logo" />
     </a>
   </div>
   <div class="col-sm-8">
@@ -251,7 +251,7 @@ <h2>Worldwide HPC Facilites</h2>
 <div class="row vertical-box">
   <div class="hidden-xs col-sm-4 align-middle">
     <a href="https://www.doeleadershipcomputing.org/incite-program/">
-      <img src="{{ site.baseurl}}/logos/incite_logo.png" class="center-block img-responsive" alt="DOE Incite logo" />
+      <img src="{{ site.baseurl }}/logos/incite_logo.png" class="center-block img-responsive" alt="DOE Incite logo" />
     </a>
   </div>
   <div class="col-sm-8">
diff --git a/logos/GW4-logo_CMYK.jpg b/logos/GW4-logo_CMYK.jpg
deleted file mode 100644
index e14f88c..0000000
Binary files a/logos/GW4-logo_CMYK.jpg and /dev/null differ
diff --git a/logos/Gw4_logo_navy.png b/logos/Gw4_logo_navy.png
new file mode 100644
index 0000000..bb49fa5
Binary files /dev/null and b/logos/Gw4_logo_navy.png differ