diff --git a/lib/core/router/app_router.dart b/lib/core/router/app_router.dart
index 4134f34..1b97b1c 100644
--- a/lib/core/router/app_router.dart
+++ b/lib/core/router/app_router.dart
@@ -94,11 +94,13 @@ class AppRouter {
   final GlobalKey<NavigatorState> _rootNavigatorKey = GlobalKey<NavigatorState>(debugLabel: 'root');
   final GlobalKey<NavigatorState> _homeNavigatorKey = GlobalKey<NavigatorState>(debugLabel: 'home');
   final GlobalKey<NavigatorState> _searchNavigatorKey = GlobalKey<NavigatorState>(debugLabel: 'search');
+  final GlobalKey<NavigatorState> _atExplorerNavigatorKey = GlobalKey<NavigatorState>(debugLabel: 'at-explorer');
   final GlobalKey<NavigatorState> _notificationsNavigatorKey = GlobalKey<NavigatorState>(debugLabel: 'notifications');
   final GlobalKey<NavigatorState> _profileNavigatorKey = GlobalKey<NavigatorState>(debugLabel: 'profile');
   List<GlobalKey<NavigatorState>> get _branchNavigatorKeys => [
     _homeNavigatorKey,
     _searchNavigatorKey,
+    _atExplorerNavigatorKey,
     _notificationsNavigatorKey,
     _profileNavigatorKey,
   ];
@@ -537,6 +539,15 @@ class AppRouter {
               GoRoute(path: '/search', pageBuilder: (context, state) => _page(context, state, const SearchScreen())),
             ],
           ),
+          StatefulShellBranch(
+            navigatorKey: _atExplorerNavigatorKey,
+            routes: [
+              GoRoute(
+                path: '/at-explorer',
+                pageBuilder: (context, state) => _page(context, state, _buildDevToolsRoute(context, state)),
+              ),
+            ],
+          ),
           StatefulShellBranch(
             navigatorKey: _notificationsNavigatorKey,
             routes: [
@@ -687,7 +698,8 @@ class AppRouter {
   NotificationDomainService? _readNotificationDomainService(BuildContext context) {
     try {
       return context.read<NotificationDomainService>();
-    } catch (_) {
+    } catch (error, stackTrace) {
+      log.d('NotificationDomainService not found for route provider setup', error: error, stackTrace: stackTrace);
       return null;
     }
   }
diff --git a/lib/core/router/app_shell.dart b/lib/core/router/app_shell.dart
index b8ea1b8..2d3f035 100644
--- a/lib/core/router/app_shell.dart
+++ b/lib/core/router/app_shell.dart
@@ -155,6 +155,11 @@ class _AppShellState extends State<AppShell> {
       selectedIcon: const _AnimatedNavIcon(selected: true, outlined: Icons.search_outlined, filled: Icons.search),
       label: l10n.labelSearchNav,
     ),
+    NavigationDestination(
+      icon: const _AnimatedNavIcon(selected: false, outlined: Icons.explore_outlined, filled: Icons.explore),
+      selectedIcon: const _AnimatedNavIcon(selected: true, outlined: Icons.explore_outlined, filled: Icons.explore),
+      label: l10n.labelAtExplorer,
+    ),
     NavigationDestination(
       icon: const _AnimatedNotificationNavIcon(selected: false),
       selectedIcon: const _AnimatedNotificationNavIcon(selected: true),
@@ -265,7 +270,7 @@ class _AppMenu extends StatelessWidget {
     final isFeedsRoute = currentPath == '/feeds';
     final isProfileRoute = currentPath.startsWith('/profile/');
     final isSettingsRoute = currentPath == '/settings' || currentPath.startsWith('/settings/');
-    final isDevToolsRoute = currentPath == '/settings/devtools';
+    final isDevToolsRoute = currentPath == '/at-explorer' || currentPath == '/settings/devtools';
     final isCleanFollowsRoute = currentPath == '/settings/clean-follows';
     final isMessagesRoute = currentPath.startsWith('/alerts/messages') || currentPath.startsWith('/alerts/requests');
     final isNotificationsRoute = currentPath.startsWith('/alerts') && !isMessagesRoute;
@@ -367,7 +372,7 @@ class _AppMenu extends StatelessWidget {
                         selectedIcon: Icons.person,
                         label: l10n.labelProfile,
                         isSelected: isProfileRoute,
-                        onTap: () => _selectBranch(context, 3),
+                        onTap: () => _selectBranch(context, 4),
                       ),
                       const Divider(height: 24),
                       _MenuSectionLabel(label: l10n.labelAdvanced),
@@ -376,7 +381,7 @@ class _AppMenu extends StatelessWidget {
                         selectedIcon: Icons.explore,
                         label: l10n.labelAtExplorer,
                         isSelected: isDevToolsRoute,
-                        onTap: () => _pushRoute(context, '/settings/devtools'),
+                        onTap: () => _selectBranch(context, 2),
                       ),
                       _MenuTile(
                         icon: Icons.cleaning_services_outlined,
@@ -607,11 +612,7 @@ class _MenuTile extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
-    final color = isDestructive
-        ? theme.colorScheme.error
-        : isSelected
-        ? theme.colorScheme.primary
-        : theme.colorScheme.onSurface;
+    final color = _color(theme);
 
     Widget tile = ListTile(
       shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
@@ -632,4 +633,13 @@ class _MenuTile extends StatelessWidget {
 
     return tile;
   }
+
+  Color _color(ThemeData theme) {
+    if (isDestructive) {
+      return theme.colorScheme.error;
+    } else if (isSelected) {
+      return theme.colorScheme.primary;
+    }
+    return theme.colorScheme.onSurface;
+  }
 }
diff --git a/test/core/router/app_router_test.dart b/test/core/router/app_router_test.dart
index 2e156ac..45acff9 100644
--- a/test/core/router/app_router_test.dart
+++ b/test/core/router/app_router_test.dart
@@ -254,6 +254,11 @@ void main() {
     await tester.pumpAndSettle();
   }
 
+  Future<void> tapAtExplorerBottomTab(WidgetTester tester) async {
+    await tester.tap(find.byIcon(Icons.explore_outlined).last);
+    await tester.pumpAndSettle();
+  }
+
   testWidgets('opens the side menu and switches authenticated branches', (tester) async {
     await tester.binding.setSurfaceSize(const Size(430, 932));
     addTearDown(() => tester.binding.setSurfaceSize(null));
@@ -286,7 +291,7 @@ void main() {
     expect(find.text('APPEARANCE'), findsOneWidget);
   });
 
-  testWidgets('bottom navigation bar shows 4 tabs with hidden labels', (tester) async {
+  testWidgets('bottom navigation bar shows 5 tabs with hidden labels', (tester) async {
     await tester.binding.setSurfaceSize(const Size(430, 932));
     addTearDown(() => tester.binding.setSurfaceSize(null));
 
@@ -294,11 +299,11 @@ void main() {
     await tester.pumpAndSettle();
 
     final navBar = tester.widget<NavigationBar>(find.byType(NavigationBar));
-    expect(navBar.destinations.length, 4);
+    expect(navBar.destinations.length, 5);
     expect(navBar.labelBehavior, NavigationDestinationLabelBehavior.alwaysHide);
 
     final destinations = navBar.destinations.cast<NavigationDestination>();
-    expect(destinations.map((d) => d.label), containsAll(['HOME', 'SEARCH', 'ALERTS', 'PROFILE']));
+    expect(destinations.map((d) => d.label), ['HOME', 'SEARCH', 'AT Explorer', 'ALERTS', 'PROFILE']);
     expect(destinations.any((d) => d.label == 'MESSAGES'), isFalse);
     expect(destinations.any((d) => d.label == 'SETTINGS'), isFalse);
   });
@@ -469,10 +474,24 @@ void main() {
     await tapProfileBottomTab(tester);
 
     final navBarAfter = tester.widget<NavigationBar>(find.byType(NavigationBar));
-    expect(navBarAfter.selectedIndex, 3);
+    expect(navBarAfter.selectedIndex, 4);
     expect(find.text('RIVER TAM'), findsOneWidget);
   });
 
+  testWidgets('tapping AT Explorer bottom tab opens the explorer branch', (tester) async {
+    await tester.binding.setSurfaceSize(const Size(430, 932));
+    addTearDown(() => tester.binding.setSurfaceSize(null));
+
+    await tester.pumpWidget(buildSubject());
+    await tester.pumpAndSettle();
+
+    await tapAtExplorerBottomTab(tester);
+
+    final navBar = tester.widget<NavigationBar>(find.byType(NavigationBar));
+    expect(navBar.selectedIndex, 2);
+    expect(find.text('PDS Explorer'), findsWidgets);
+  });
+
   testWidgets('LazuriteAppBar shows section label and hamburger on home screen', (tester) async {
     await tester.binding.setSurfaceSize(const Size(430, 932));
     addTearDown(() => tester.binding.setSurfaceSize(null));