links on the page

app/helpers/navigation_items_helper.rb

@@ -34,6 +34,13 @@ module NavigationItemsHelper
     ]
   end
 
+  def scheme_items(path, current_scheme_id)
+    [
+      NavigationItem.new("Scheme", "/supported-housing/#{current_scheme_id}", true),
+      NavigationItem.new("Locations", "/supported-housing/#{current_scheme_id}/locations", false),
+    ]
+  end
+
 private
 
   def logs_current?(path)

app/views/schemes/show.html.erb

@@ -3,6 +3,10 @@
 
 <%= render partial: "organisations/headings", locals: { main: @scheme.service_name, sub: nil } %>
 
+<%= render SubNavigationComponent.new(
+  items: scheme_items(request.path, @scheme.id),
+) %>
+
 <div class="govuk-grid-row">
   <div class="govuk-grid-column-two-thirds">
     <%= govuk_summary_list do |summary_list| %>

spec/features/schemes_spec.rb

@@ -130,8 +130,8 @@ RSpec.describe "Supported housing scheme Features" do
           end
 
           it "shows service and locations tab" do
-            expect(page).to have_content("Service")
+            expect(page).to have_link("Service")
-            expect(page).to have_content("locations")
+            expect(page).to have_link("#{schemes.count} locations")
           end
         end
       end