全部社交互动项目 in 格林德瓦 (Grindelwald)

瑞士传统雪地自行车（velogemel）是自行车、雪橇和滑雪板的结合体，堪称在雪地中玩耍的理想选择，尽管这并非制造它的初衷。

Build a sledge from scratch using a variety of materials such as skis, wood, car tyres, upholstery, wire mesh or cardboard. Your team machine can be hammered, glued, cut and sawn until the finished sledge is ready for the initial safety check, and then given its very first test drive