Instead to the product page, I would like to direct our customers to a custom URL that holds our landing page from the category product... without affecting the product url.
Recommendation of an extension can also be an option.
You can override the product view page for the particular product.
First of all, create a Static Block with your landing page stuff in it. Let's call it "product_xyz_landing"
In your backend go to Catalog -> Manage Products
Find you product and click Edit
Choose the Tab "Design" in the left"
Now in Custom Layout Update
Insert the following code
<reference name="content"> <action method="unsetChild"><name>product.info</name></action> <block type="cms/block" name="landing"> <action method="setBlockId"><block_id>product_xyz_landing</block_id><action> </block> </reference>
I hope this helps.