Among the most beautifully landscaped places are those that comprise Calas Galadhon Park, a set of eleven sims owned and landscaped by Tymus Tenk and Truck Meredith. The estate had been closed for a short while and reopened on February 1st: one can only imagine the cost and effort required to maintain all the regions, and after four years it was time to lower some costs, converting two of the full sims to homestead regions and one full sim to an openspace sim. It's an extraordinary gesture by Mr. Tenk and Mr. Meredith to share these sims with the Second Life community.
It seems to me that one blog post for all eleven sims would shortchange them, so I'll visit each in turn. The "mother" or hub sim is called simply Calas Galadhon, and here one can find a teleport board to all the others, as well as enjoy a tranquil balloon ride that winds through this and the other sims, and a cuddle boat tour too. A little lakeshore village is backed by a hillside topiary garden. You can read more about this sim on the Calas Galadhon website. Don't forget to make a contribution if you can.