<https://forums.geocaching.com/GC/index.php?/topic/272463-can-you-bulk-add-to-bookmark-list/#comment-4683847>
<http://schema.org/text>
"GSAK has a macro: BookMark.gsk \"Bookmark your current filter one by one at gc.com\" \n  \nNot quick, but a little quicker than opening each page by hand and clicking on 'Bookmark' \n  \nWould be nice if they bookmarked the caches themselves!   \n"
<https://forums.geocaching.com/GC/index.php?/topic/272463-can-you-bulk-add-to-bookmark-list/>