These are my photos from parks I have visited (I didn't take them, they are all from Wikimedia Commons).

This shows you how to make a simple image gallery using articles in com_content.

In each article put a thumbnail image before a "readmore" and the full size image after it. Set the article to Show Intro Text: Hide.

This Module displays other Articles that are related to the one currently being viewed. These relations are established by the Meta Keywords.  All the keywords of the current Article are searched against all the keywords of all other published articles. Help
Displays a set number of articles from a category based on date or random selection. Help Joomla! 1.7 continues development of the Joomla Framework and CMS as a powerful and flexible way to bring your vision of the web to reality. With the administrator now fully MVC, the ability to control its look and the management of extensions is now complete.   All components also are used in the administrator area of your website. In addition to the ones listed here, there are components in the administrator that do not have direct front end displays, but do help shape your site. The most important ones for most users are Media Manager Extensions Manager Menu Manager Global Configuration Banners Redirect   Media Manager The media manager component lets you upload and insert images into content throughout your site. Optionally, you can enable the flash uploader which will allow you to to upload multiple images. Help Extensions Manager The extensions manager lets you install, update, uninstall and manage all of your extensions. The extensions manager has been extensively redesigned for Joomla! 1.6, although the core install and uninstall functionality remains the same as in Joomla 1.5. Help Menu Manager The menu manager lets you create the menus you see displayed on your site. It also allows you to assign modules and template styles to specific menu links. Help Global Configuration The global configuration is where the site administrator configures things such as whether search engine friendly urls are enabled, the site meta data (descriptive text used by search engines and indexers) and other functions. For many beginning users simply leaving the settings on default is a good way to begin, although when your site is ready for the public you will want to change the meta data to match its content. Help Banners The banners component provides a simple way to display a rotating image in a module and, if you wish to have advertising, a way to track the number of times an image is viewed and clicked. Help
Redirect The redirect component is used to manage broken links that produce Page Not Found (404) errors. If enabled it will allow you to redirect broken links to specific pages. It can also be used to manage migration related URL changes. Help   If this is your first Joomla site or your first web site, you have come to the right place. Joomla will help you get your website up and running quickly and easily. Start off using your site by logging in using the administrator account you created when you installed Joomla!.   This module shows a list of the calendar months containing archived articles. After you have changed the status of an article to archived, this list will be automatically generated. Help leden až 2011   The banner module is used to display the banners that are managed by the banners component in the site administrator. Help.
This Module shows a list of the currently published Articles which have the highest number of page views. Help Sample Sites Weblinks Module Wrapper Module News Flash Australian Parks