diff --git a/main/world1/index.html b/main/world1/islands.html
similarity index 100%
rename from main/world1/index.html
rename to main/world1/islands.html
diff --git a/main/world1/sub.html b/main/world1/sub.html
index 9abdd4c..ab2e9e0 100644
--- a/main/world1/sub.html
+++ b/main/world1/sub.html
@@ -9,10 +9,9 @@
 	</style>
 </head>
 <body>
-	<a href="index.html">islands</a><br>
+	<a href="html.html">html</a><br>
 	<a href="Ixse.html">Ixse</a><br>
 	<a href="VB01.html">VB01</a><br>
-	<a href="p80.html">port80</a><br>
 	<a href="black_sea.html">black_sea</a>
 </body>
 </html>
\ No newline at end of file
