high level track over water
<a href="//commons.wikimedia.org/wiki/User:Axpde" title="User:Axpde">axpde</a> (original)
2009-02-20
Own work based on: <a href="//commons.wikimedia.org/wiki/File:BSicon_hWSTR.svg" class="mw-redirect" title="File:BSicon hWSTR.svg">BSicon hWSTR.svg</a>