If your trip to Le Locle is all sorted out but your itinerary is a bit on the empty side, let us give you a few hints and tips.Close to the center, Moulins Souterrains du Col-des-Roches is one attraction you might like to consider putting on your to-do list. If you still have space on your itinerary, Monts Castle and Musee des Beaux-Art will keep you busy as well.