Smushed between Italy and Croatia, geography and history have permitted Slovenia a mere 42 kilometers of coastline. Incidentally, this is about the distance of a marathon. I don't know if the whole coast is pedestrian friendly–there are some serious looking commercial ports along the way–but I love the idea of eating breakfast in one country, running the entire coast of a second country, and ending up in a third country in time for a generous lunch.
I spent a lazy day in Izola, about midway along the coast. Not surprisingly, most of the town's activity was centered around the harbor: restaurants with outdoor patios, cyclists touring the coast, and people doing, um, whatever it is they do with their boats.
There is no beach in Izola but there are a couple of popular spots for sunbathing and getting in the water.
It's a very small town so you cannot get lost, but there are enough twisting streets, blind alleys, and dead ends that it's fun to go for a short wander. I picked the clock tower as my destination and eventually found my way there after some good wrong turns.
Since I was the sole guest at my hostel, the owners let me borrow their bike and go for a ride in the evening. It was too cloudy for much of a sunset, unfortunately, but it was nice to watch the silhouetted sailboats on the horizon.