Wikipedia:Articles for deletion/List of Fiji-related categories
This could be useful for finding categories, and I can't think of anything in WP policies that obviously prohibits it. There's quite a lot of similar articles e.g. List of mathematics categories, List of software categories which are detailed and offer good information. Although it arguably duplicates the category system,  allows lists and categories to co-exist, though it doesn't say anything about lists of categories. Regarding notability, list articles can be created for navigation purposes providing they encompass a coherent and useul group of subjects (see 
— User:Colapeninsula, 09:24, 29 August 2012 (UTC)
Stance: comment
Cited policy: WP:CLN||WP:L (Wikipedia:Categories, lists, and navigation templates)