I went for the treetop walk from HortPark at Alexandra to Henderson Waves at Mount Faber with the help of my colleagues on Monday. You can view the pictures I took using my mobile phone in the album under the title 'HortPark'. Too bad my mobile phone was running low on battery thus I couldn't take more pictures. The place is really very nice. The walk was refreshing. I wish I can do it again. I strongly urge you to go.
Update on May 1, 2011: Album shifted to here.