Complex sentence: The Surfers moved to London to complete the third album "Sleep Armed" and to perform live concerts there and in Europe, where they played the Netherlands, Germany, Switzerland, France, Luxembourg, Moscow, Leningrad, Riga, East Berlin and London.
Split into simpler sentences: The Surfers moved to London to complete the third album "Sleep Armed" and to perform live concerts there and in Europe. The Kalahari Surfers were seen as far afield as the Netherlands, Germany, Switzerland, France, Luxembourg, Moscow, Leningrad, Riga, East Berlin and London.