The water-bus from Venice to Murano takes half an hour, but comes after periodic gaps, and in season, at least, causes such an unseemly scramble among tourists that it puts you off the virtues of exploring this tiny island that has been making glass since the 10th century. Murano’s attractions as a tourist haven are slightly exaggerated. True, it is quaint, but compared to Venice it has little to offer besides a production history in glass making. You can’t help feeling, when you are there, that it is a tourist trap.