In early 1855, less than twenty years after the colony was founded, South Australia's first horse tram began operating between Goolwa and Port Elliot on the Fleurieu Peninsula. Just over twenty years later Adelaide became the first city in Australia to introduce horse trams, and eventually the last to discard them for more modern public transport. Although two trials of street level trains were run, the state of Adelaide's streets, with mud in winter and dust in summer, led to the decision that they would not be reliable.