Deciding to do the touristy thing and take a trip to the Rainbow Waterfalls you find you are awestruck by the magnificence of the place. Set in a deep valley, the mountains surrounding the area are a perfect backdrop to the many dozens of waterfalls cascading into the river below which winds off somewhere into the distance. The spray from the water creates a fine mist which seems to hang in the air causing a permanent array of rainbows to hang in the skies above, and the lush green foliage has attracted many pokemon, some of which you can see wandering around in the valley below. There are several long wooden bridges spanning the area high above the river (one of which you are standing upon), and you can see manmade trails leading down the side of the mountain. There are many people about, some travelling alone, some travelling in groups, as well as several couples finding this to be the perfect romantic setting as they traverse the area, totally absorbed in one another.
So, it seems there appear to be several options available to you. You can explore the upper mountains using the many bridges to travel from one place to another, you can take a hike down one of the mountain trails that lead to the valley below (who knows what you may find along the way), you can approach one of the trainers or tourists in the area or you can simply wander about, looking for something that may catch your eye. What would you like to do?