Hi all how are you guys?

I'm very good programmer in PHP, but newbie using Drupal.

I have a site and I want to convert this site to Drupal and I dont have any Idea how I can do this:

I need to create this structure:

Example (this is a site for travelling):

3 Sections or Categories (I dont know how to name this): - With kids - With Family - With myself

inside each one I'll will have posts and 2 submenus for filtering these posts: - Destinations (can be) - Argentina - England - United States - Brasil

or: - Activities: - Snow - Beach

....

IN each categorie when I add a post content, I will select the destinations and activities this post is inside, and when I'm inside of "with kids" I will see all the posts, or the featured posts for this section, and I can click brasil and see the posts in "with kids" for Brasil, or I can click in "snow" and see the posts asignted to Snow.

I was reading the drupal developement book, and I still dont understand how to do this.

Can anyone please, help me?

Best regards, Gonzalo