In 1291 the Venetian Republic ordered every glass furnace moved out of the city and onto Murano, ostensibly to spare a timber-built capital from fire, in practice to fence a trade secret behind water. Glassmasters gained wealth and privilege; they also lost the right to leave. Their descendants still work the same lagoon sandbank today. Burano followed a different economy. Its women made needle lace — punto in aria, stitched in air, worked without a supporting fabric — and by the seventeenth century the island's collars and cuffs dressed courts from Paris to Madrid. The Museo del Merletto, housed in the former Scuola dei Merletti on Piazza Baldassarre Galuppi, holds pieces that took a single pair of hands months to complete. The painted houses were not decoration but navigation: fishermen returning through lagoon fog identified their own doorways by colour, and the palette is regulated to this day. A private murano and burano tour threads these two economies together in a single crossing. The islands sit roughly seven and ten kilometres northeast of San Marco, in shallow water braided by marked channels. Torcello, often folded into the same itinerary, was the first settled and is now the emptiest — its Basilica di Santa Maria Assunta, consecrated in 639, carries a Byzantine Last Judgement mosaic across the west wall and a bell tower that surveys the whole northern lagoon. Murano's Basilica dei Santi Maria e Donato answers it with a twelfth-century mosaic pavement of peacocks and interlace. Nearby, the Museo del Vetro traces furnace work from Roman fragments to Carlo Scarpa's mid-century designs. What distinguishes a Venice lagoon islands boat tour by private launch is control of sequence. Public vaporetti run fixed routes to fixed pontoons; a chartered boat can reverse the order, linger at a working furnace, or add Torcello without penalty. The islands themselves cost nothing to enter — access is free at 0 EUR, and the excursion is the commercial part. Glassblowing demonstrations shown on these runs are held in family workshops rather than tourist theatres, and the difference is audible in the furnace roar. Lace demonstrations on Burano are increasingly rare; fewer than a dozen women still work the seven traditional stitches. Booking a private murano and burano tour tour is, in that narrow sense, a form of patronage — the crafts survive on the attention paid to them, and both islands remain places of labour first and scenery second.