Two kilometres south of Jablanac, the fjord-like Zavratnica is one of the most beautiful coves on the Adriatic coast, and is the one destination south of Senj that you should on no account leave off your itinerary. It is basically a sunken mountain ravine, with a shallow bay overlooked by sheer, rugged cliffs.  You can walk there from Jablanac along a level and easily negotiable path that begins just below the Rapska plovidba ferry ticket kiosk. The path was built in the 1930s, when Zavratnica was a popular stop-off for Czech and Austrian tourists bound for the off-shore resort of Rab.
Once you get to the cove the path winds beneath bone-white crags, eventually arriving at a pine-shaded bathing area at the cove’s eastern end. It’s the perfect place for contemplation, and even in summer when Zavratnica fills up with excursion boats, it’s a good spot to sunbathe and swim.
A stony path heads uphill and inland from Zavratnica to the Vidikovac (‘viewpoint”; also accessible by car from the main coastal road), where you can enjoy superb views back across the cove.