Take Slovenia’s Sava River on headfirst during this “bellyak” tour. Bellyaking is just what it sounds like: kayaking on your belly. You use your arms to paddle like you are lying on a surfboard, headfirst, with the protection of a helmet. Get your blood pumping and experience the pristine nature of the river; you’ll feel safe and comfortable with a guide in the lead. You’ll travel with a small group of just four people, which ensures personalized attention.