The Melbourne planners are to be congratulated on their design for the City.  The central grid system makes navigation extremely easy (though rather annoying when you have to cross the roads and wait for the green man) and there are many parks, gardens and other green spaces dotted around to allow for relaxation and/or recreation.  I saw many joggers/runners out training while on my way to the Royal Botanic Gardens, which is easily reached on foot (or tram if necessary) from the ‘CBD’ (Central Business District).  To get there, I crossed over Princes Bridge and walked through the Alexandra Gardens, the Queen Victoria Gardens and the Kings Domain.  The Botanic Gardens are free to enter and are well worth a visit.