List Subpages

This is great for custom sub nav of pages

<?php 
// list the About subpage menu
$args=array(
   'showposts'=>5, // how many to show
   'sort_column'=>'menu_order',
   'post_type'=>'page', // page or post
   'child_of' => $post->ID,
);
$myPosts = get_pages($args);
if ($myPosts) { 
foreach ($myPosts as $myPage) {
$permalink = get_permalink($myPage->ID);
}
}
?>