To get acquainted with you fir side, enroll in the biathlon that takes place from Andrew Boy Charlton Pool in the Domain every Thursday night between mid October and March. It’s a 4 km run and a 300 m swim. You run past Mrs Macquarie’s Chair and break into an uphill run to the turning point by the entrance gates. You will be greeted with the breathtaking views of Harbour on one side and the Opera house and Bridge on the other. Trust me the vista holds power to distract you from your sprint. The return 2 km is all downhill and finish off with a pool swim.