Ocean Bus, Stockholm

Visitors to Stockholm, Sweden, can take a city tour on the 40-passenger, amphibious Ocean Bus (Nybrogatan 62, 114 40, Stockholm, Sweden; phone +46 708 879 854, www.oceanbus.se/en). 

The 75-minute tour leaves from a point near the Royal Opera House (Strömgatan 10, Stockholm) and, making no stops, takes passengers through the Östermalm district, then launches into the water to cruise past the islands of Djurgården and Skeppsholmen before returning. 

The daily tours leave roughly every two hours, 10:30 a.m.-6 p.m. SEK260 (near $30) per person. Buy tickets online or at the starting point.