Poipu, "the sunny side" of the island, has many activities and easily accessed beaches. The beaches in Poipu, offer some of the best swimming on Kauai. They also regularly host Monk Seals and Hawaiian Green Sea Turtles, both of whom come up on to the beach to rest and sleep. They stay for hours lounging in the sun. An enjoyable sight for all.
There is an excellent selection of restaurants found throughout Poipu and its sister town of Kaloa.
There are several wonderful resorts to choose from in the Poipu area. The Poipu Kai Resort, for example, is a great place to stay with over 70 acres of grassy grounds, many pools, spas, barbecues and easy beach access. The Grand Hyatt and the Sheraton Kauai are premier hotel/Resorts in Poipu.
In short, there is something for everyone in Poipu.