It isn’t much more decorated than V3, but it has more lots placed and lots of pre-built lots that are pretty nice, including houseboats. Hah! I found it! Silly me assumed that V3 of the world would be the most complete. If anyone happens to have that more-built version, I’d love to have it. This is the most complete version of the world that I’ve been able to find. That said, there is an old thread (from 2013) on the official Sims forum that has pictures of a more-built version of this world, and there is a Mediafire link to that version in that thread, but the link is unfortunately dead. (Though I do not think it would be advisable to move houseboats in the world, as there isn’t really anywhere for them to go.) I’ve had this world for a little while in my own game, and I’ve been poking at making it a functional world off and on, changing the existing resort into a base camp so that the world can be used as a vacation world for horse people, using the Traveler mod. In addition to the standard equestrian world features of blocks of contiguous 64圆4 lots for building multi-lot horse facilities, a riding trail, and scattered lots meant for picture-taking, this world has an already-built resort, an empty diving lot, and four ports built and ready for houseboats but no actual houseboats. Of course, if you want to do more decorating and lot-placing and such with World Editor, that’s certainly a thing you can do. The parts that are decorated are lovely, however, and that area is enough to play in, I think.

This is a large, mostly-empty American-West-style equestrian world with lots placed, but it is not completely decorated. (These are pics of V3 in that download folder.)

This is another world created by Sugar’s Legacy Stables for which there is a download in this download folder but few pics and little info on the internets about it, so I’m making a proper post.

Sims 3 beach world empty