Alexandra Arch is an 80 meter pedestrian bridge linking Hilltop Walk and Forest Walk. It is designed as an open leaf across the road.
The arch was awarded with the Singapore Structural Steel Society award for Distinguished use of Structural Steel for its Creativity, Value, and Innovation. The elevated walkway of the Forest Walk is an 800 meter long walkway at an altitude of 3 meters to 18 meters above the park. Both structures are built from steel and create a peaceful walk through the park.