Situated on an islet just 500m long and 200m wide in a loop of the Krka River, sleepy Kostanjevica is Slovenia’s smallest town and, with a charter that dates back to 1252, one of its oldest. Apart from the excellent Božidar Jakac Art Museum, the main highlight of a visit here is taking a simple stroll on the island with its handful of historical buildings, admiring the serene atmosphere.

If you're road-touring, Kostanjevica makes for a good stop-off to stretch your legs; if you enjoy a quiet village atmosphere, it's a very tranquil base for the night. Kostanjevica’s historical sights are on the island; further amenities are on the mainland to the northwest or southeast, reached by two small bridges.