Lake Ad Excellentiam (Weiyuan Lake), formerly known as the Lily Pond, is the most famous landmark of Chung Chi College. It echoes Chung Chi College's motto, "In Pursuit of Excellence".

In the mid-1990s, a major renovation was executed with two bridges newly built across the Lake. The Crooked Bridge on the east and the Arched Bridge on the west signify the ups and downs and twists and turns in life respectively. However, one is always able to cross the bridge, and arrive at the other side.

Philosophy Path, the trail hugging the shoreline of the Lake, leads one to contemplate on life as philosophers do. You may find on the slope close-by a topiary work of the College’s Motto, "In Pursuit of Excellence 止於至善".