... if you can't find a good way to woo someone on Sundown, there may not be any hope for you.
Sundown is a UNSC colony world, used mainly as a holiday resort.
In 2553, Edward Buck and Veronica Dare spent a week there to rekindle their relationship. However, this holiday was interrupted when Jun-A266 arrived, to offer Buck a place in the SPARTAN-IV program. Buck refused the offer and he and Dare continued their holiday for its remaining day.
Sundown itself was dominated mainly by ocean, with a few mountainous peaks breaking the waterline. These peninsulas were connected by cable cars, to allow easier travel. Most of the structures were small private villas constructed on wooden pillars, above stretches of shallow ocean.