To start with, in Appearance > Theme Options > Theme Options, underneath the “Design Styles” heading set the Layout Style option to “Full Width – Right Header”.
The masthead background image is set in Appearance > Theme Options > Backgrounds.
Once you add a full-screen slideshow to the home page header (Appearance > Layout Manager > Headers) the masthead will automatically become transparent when that full-screen slideshow is being displayed.
The page content is just a bunch of dummy content arranged in a certain way using Visual Composer. It’s not difficult to replicate that page design, it’s just rows and columns filled with content.
For example at the top of the content we have a row containing a “Text Block” element above a “Headline with Subtitle” element.
Underneath that is a new row split into three columns with a “Single Image” element in each, and the left-hand and right-hand columns have “Text Box” elements underneath the images.
Underneath that is a new row split in to four columns, each containing a “Single Image” element.
Underneath that is a new row containing a button (See More Photos).
Underneath that is a new row containing a “Single Image” element (Sloan and the hiking map).
And so on.
If you are having trouble replicating that particular layout please let me know exactly what the problem is and I’ll be glad to help.