suggest an alternative routethe hsbc tree top is piece of cake for 南瓜, who came back from taman negara. i used to walk from mcritchie all the way to bukit timah. but ther's a longer path from mcritchie to the north, passing by the middle of lower peirce and upper peirce, and all the way to somewhere near seletar(where the zoo is located). i haven't confirmed where is the end yet. there's no sign on google earth.(but u could see the "tower" on google earth) do u guys want to try that one? it will probably take one FULL day. more challenging!