Nothing beats chilling out by the water while you're on vacation. Bring a picnic to Riblje Lake and then hang around for an impressive sunset.
When you've finished up at this body of water in Zabljak, there are tons of other sightseeing opportunities in the area. Many travelers make a beeline for Crno Lake next. It's conveniently near Riblje Lake, so why not add it to your itinerary?