Solar-powered Goboats are now a feature of Copenhagen’s harbour since entrepreneurs Carl Kai Rand and Kasper Hojer set up the city’s newest start-up earlier this year. The kebony-clad hire boats, which can accommodate up to eight people, have a maximum speed of six knots and can ply the waters of the harbour before coming back to their similarly-clad terminal building, developed by Gaia Solar, for a recharge. It is hoped that, over time, the silver grey patina that the building will develop will complement the other waterside structures in the harbour –including its Henning Larsen-designed opera house.