On a bike, even the narrowest of alleys can be entered and this facilitates direct contact with local people. In contrast, traveling with a tour group, alternating between hotel, coach and tourist site, only offers a superficial view of a place.
再說，騎著單車什麼小街小巷都能進去，和當地人能夠最直接地接觸，不像一般旅行團只在景點、遊覽車和旅館間蜻蜓點水般地走馬看花。