The location of the data is not visible to the client in this API. The API is designed to allow the user to find the names (for display to the user) and LAS ID (for making requests) of the data sets in the system and then to use the other parts of the API to understand the products (mostly plot images, but some data representations) that are available. And finally to request a product be made for the client.
If you are just looking for a wholesale way to get the data and download it you're better off looking at an source and API designed for that purpose. Find a THREDDS catalog that contains the data in question or even an FTP site is likely to be more productive.
Roland