diff --git a/nav.py b/nav.py
index 80d0770..517ef1f 100644
--- a/nav.py
+++ b/nav.py
@@ -3,6 +3,7 @@
 
 Usage: python3 nav.py DESTINATION
        python3 nav.py --list
+       python3 nav.py --all
 """
 
 import sys
@@ -123,6 +124,11 @@ def main() -> None:
         for key in sorted(ROUTES):
             print(f"{key:12} {NAMES[key]}")
         return
+    if sys.argv[1] == "--all":
+        for key in sorted(ROUTES):
+            print_plan(key)
+            print()
+        return
     destination = sys.argv[1].lower()
     if destination not in ROUTES:
         known = ", ".join(sorted(ROUTES))