Swimming - The city has some great pebble and many concrete beaches, although most of them are quite crowded during high season see photo. There is a path that leads along the beach part of the city for about 3 miles. Follow it until you find a place that is suitable for you. Many small privately owned beaches have loungers, small boats, and other gear for hire.
Mud therapy - At the western end of the promenade is a small spa town of Igalo, renowned across Europe for healing properties of its muddy, mildly radioactive sand. A health and hospital centre complex offers mud therapy combined with other treatments, but you can do it yourself by following the locals and wading through the sand. Apply the muddy sand all over your body, or on affected parts, and combine with gentle exercise and sunbathing for best effects. This is believed to be beneficial for rheumatic complaints, skin disorders, and gynecological problems.
People watching - Along the promenade, the main square in the Old Town, and almost everywhere else around town, there are about hundred small cafes with tables conveniently positioned for this popular local pastime. All serve good coffee italian style and many also offer a selection of freshly made and delicious cakes and ice creams.
Hiking - Going from the bus station up towards the hills you can find some wonderful ancient stone paths that lead up to some very rural communities. The paths are not marked and not very visible but if you wander along any road for a mile or so and keep an eye on the vegetation you should find one. Either way take a 3 or 4 mile walk up into the hills whether you find the paths or not.
Mountaineering - Get in touch with Herceg Novi based mountaineering society "Subra" if you are serious about mountain sports in some of the most beautiful and unspoiled mountains in Europe: Check out their website on (http://subra.users.cg.yu). This website also provides basic maps of some hiking routes in vicinity of Herceg Novi, and information about local mountain huts.