Remove credit link from Poseidon theme

Hi. I have used wordpress many times and have been able to edit the footer.php file to change the “Powered by” link. However, with this theme I am finding it impossible. Can someone point me to the file that contains the credit info for this theme?

My page is http://www.zancudotours.com if anyone wants to look.

I have tried commenting out the php lines to no avail. Can I just delete this whole file and add my own?

Footer file contains this:

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[ Moderator note: code fixed. Please wrap code in the backtick character or use the code button. ]

<?php
/**
 * The template for displaying the footer.
 *
 * Contains all content after the main content area and sidebar
 *
 * @package Poseidon
 */

?>

	</div><!-- #content -->

	<?php do_action( 'poseidon_before_footer' ); ?>

	<div id="footer" class="footer-wrap">

		<footer id="colophon" class="site-footer container clearfix" role="contentinfo">

			<div id="footer-text" class="site-info">
				<?php do_action( 'poseidon_footer_text' ); ?>
			</div><!-- .site-info -->

			<?php do_action( 'poseidon_footer_menu' ); ?>

		</footer><!-- #colophon -->

	</div>

</div><!-- #page -->

<?php wp_footer(); ?>

</body>
</html>

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Thank you in advance.

Ray