Think of a place that you enjoy visiting. It could be a beach, a playing field or a shopping arcade. Now close your eyes and, using only your mind's eye, stroll through the scene from start to finish. Note all the things that you see as you make your way through the scene. Now repeat the exercise, but this time, make a note of the things that you hear. Continue the exercise using each of your senses, smell, taste, etc.
When you have finished, you should find that you have enough material to describe the place you have chosen in much greater depth.