If you have a few hours to kill in Tromso, some of the most well-known pursuits are dog-sledding (winter only), snowmobiling (winter only) and kayaking. Or, if you prefer less active excursions, take a city tour, or make your way to the Polaria Museum, where you can observe live fish and seals, and catch short films on Arctic wildlife and the Northern Lights. Or check out the Arctic Cathedral, a beautiful Lutheran church, built in 1965, where Norwegian folk songs are performed during midnight concerts for passengers on summertime voyages. (The midnight sun ensures extended daylight during the summer months.) If you'd rather explore port on your own, the city -- dotted with colorful, cube-shaped buildings that resemble LEGO blocks -- is easily walkable. Tromso is up-and-coming in terms of food, culture and shopping, so you're sure to find something of interest.