A straightforward outdoors base for children who will walk: one flat lake loop, a beginners' ski field, cheap bikes and boats, and cold nights even in July.
Bikes from the national park
EUR 3 an hour or EUR 8 a day from the park, and the road round to Ivan-do and the Black Lake is flat and largely traffic-free. Sizes are limited, so ask early in the day rather than after lunch.
Javorovaca, the beginners' ski field
The gentle alternative to Savin Kuk, with a ski school and ski service. Day passes are EUR 8 for adults and EUR 5 for children, weekly EUR 48 and EUR 30, and equipment hire runs from EUR 7.
The visitor centre for a wet afternoon
EUR 1 on its own gets you into the park's visitor centre and its exhibition, and it is also where you ask whether a trail is passable. It is about the only indoor thing in Zabljak that is not a restaurant.
Snowshoes instead of skis
Snowshoes are EUR 4 a day and poles EUR 3 from the park, and the flat circuit of the Black Lake works in winter for anyone who can manage three or four kilometres. Cheaper and less frustrating than a first ski day for young children.
Respect the altitude and the afternoons
The town sits at 1,450m: nights are cold in midsummer, storms build over the massif most summer afternoons, and weather turns fast on the ridges. Zabljak is small, so anything beyond a health centre means a long drive to Niksic or Pljevlja.