Wakayama, Japan

The bustling port of Shimotsu is the gateway to Wakayama Prefecture and its capital city. With over 372 miles (600 km) of coastline, all of the delights of the sea are on offer, including snorkeling, swimming or scuba diving off one of its many white-sand beaches, marveling at the underwater world on display at the aquarium in the Museum of Natural History, and watching the intricate process of preparing a massive tuna in the Kuroshio Market. Known as 'Onsen Heaven', Wakayama is home to a variety of geothermal bathing experiences, a treasured Japanese tradition for centuries. Nearby are the hilltop Wakayama Castle, with park-like grounds, and the resort island of Wakayama Marina City. For those looking for a more active experience, there is everything from animal encounters at Adventure World to a walking tour along the sacred paths of the 1,200-year-old Koyasan monastery complex, a UNESCO World Heritage Site. When hunger strikes, try some Wakayama ramen made with a tasty soy sauce. And remember that the first matcha green tea ice cream was created in Wakayama City, so be sure to treat yourself.