Suppose your cruise ship is visiting Rijeka, Croatia. In that case, you'll want to walk to Trsat Castle during your time in this historic city. The Trsat Castle on a high hill is absolutely possible to walk to, even if your ship isn't in port for a long time. Keep reading to … [Read more...] about How to Walk to Trsat Castle and More in Rijeka, Croatia: One-Day Shore Excursion