If your idea of a good vacation means being near the water, make a beeline for Zengtong Rime Island. Whatever you choose to do here, you're unlikely to get bored of those lovely views.
You'll need to make your way to Fengman District to reach this water-surrounded land mass. If you intend to do some sightseeing later on, why not check out Songhuahu Ski Field? It's within reach of Zengtong Rime Island.