Does cycling along the river with a friend or your partner in the evening with the city lights sound great? Start in West End on Jane street, hire out a city cycle bike (you will need to hire online at http://www.citycycle.com.au/, it's $2 for the first half an hour, but there are enough stops in between the track to change bikes (make sure you do or you will get charged extra!) for it to remain $2. Ride and just follow the river towards Southbank, the view is beautiful and it's nice an active as well, perfect for a summers night! You don't have to return your bike to the exact same station, can be returned to any station as long as there is a spot. If you're a little worried about that you can also download the city cycle app which will tell you exactly where they all are.